Neptune (Simple English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Neptune" in Simple English language version.

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30nasa.gov

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aas.org

McHugh J.P. Computation of gravity waves near the tropopause Archived 27 October 2007 at the Wayback Machine, AAS/Division for Planetary Sciences Meeting Abstracts, p. 53.07, September 1999

archive.org

Moore, Patrick (2000). The Data Book of Astronomy. Taylor & Francis. p. 206. ISBN 9780750306201.
Stanley, Sabine; Bloxham, Jeremy (11 March 2004). "Convective-region geometry as the cause of Uranus's and Neptune's unusual magnetic fields". Nature. 428 (6979): 151–153. Bibcode:2004Natur.428..151S. doi:10.1038/nature02376. PMID 15014493. S2CID 33352017.
Moore, Patrick (2000). The Data Book of Astronomy. Taylor & Francis. pp. 207. ISBN 9780750306201.

archive.today

Espenak, Fred (20 July 2005). "Twelve Year Planetary Ephemeris: 1995–2006". NASA. Archived from the original on 5 December 2012. Retrieved 1 March 2008.

arxiv.org

Helled, Ravit; Nettelmann, Nadine; Guillot, Tristan (2020-03-25). "Uranus and Neptune: Origin, Evolution and Internal Structure". Space Science Reviews. 216 (3): 38. arXiv:1909.04891. Bibcode:2020SSRv..216...38H. doi:10.1007/s11214-020-00660-3. ISSN 1572-9672. S2CID 202558606.
Schörghofer, Norbert; Hsieh, Henry H. (2018). "Ice Loss From the Interior of Small Airless Bodies According to an Idealized Model". Journal of Geophysical Research: Planets. 123 (9): 2322–2335. arXiv:1802.01293. Bibcode:2018JGRE..123.2322S. doi:10.1029/2018je005568. ISSN 2169-9097. S2CID 119100900.
Mallama, A.; Hilton, J.L. (2018). "Computing Apparent Planetary Magnitudes for The Astronomical Almanac". Astronomy and Computing. 25: 10–24. arXiv:1808.01973. Bibcode:2018A&C....25...10M. doi:10.1016/j.ascom.2018.08.002. S2CID 69912809.
Christophe; et al. (October 2012). "OSS (Outer Solar System): a fundamental and planetary physics mission to Neptune, Triton and the Kuiper Belt". Experimental Astronomy. 34 (2): 203–42. arXiv:1106.0132. Bibcode:2012ExA....34..203C. doi:10.1007/s10686-012-9309-y. S2CID 55295857.

bbc.co.uk

"Nasa's Hubble telescope discovers new Neptune moon". BBC. 15 July 2013. Retrieved 16 July 2013.

news.bbc.co.uk

"Five new moons for planet Neptune". BBC News. 18 August 2004. Retrieved 6 August 2007.

bbc.com

"Nasa's Hubble telescope discovers new Neptune moon". BBC News. 2013-07-15. Retrieved 2021-06-13.

books.google.com

de Pater, Imke; Lissauer, Jack J. (2015). Planetary Sciences (2nd updated ed.). New York: Cambridge University Press. p. 250. ISBN 978-0-521-85371-2. Archived from the original on 26 November 2016. Retrieved 17 August 2016.
de Pater, Imke; Lissauer, Jack J. (2015). Planetary Sciences (2nd updated ed.). New York: Cambridge University Press. p. 250. ISBN 978-0-521-85371-2. Archived from the original on 26 November 2016. Retrieved 17 August 2016.
de Pater, Imke; Lissauer, Jack J. (2015). Planetary Sciences (2nd updated ed.). New York: Cambridge University Press. p. 250. ISBN 978-0-521-85371-2. Archived from the original on 26 November 2016. Retrieved 17 August 2016.
de Pater, Imke; Lissauer, Jack J. (2015). Planetary Sciences (2nd updated ed.). New York: Cambridge University Press. p. 250. ISBN 978-0-521-85371-2. Archived from the original on 26 November 2016. Retrieved 17 August 2016.
Elkins-Tanton, Linda T. (2006). Uranus, Neptune, Pluto, and the Outer Solar System. Infobase Publishing. p. 75. ISBN 978-1-4381-0729-5.

caltech.edu

coolcosmos.ipac.caltech.edu

"What is the Great Dark Spot?". Cool Cosmos. Retrieved 2021-06-12.

cosis.net

Atreya, S.; Egeler, P.; Baines, K. 2006. Water-ammonia ionic ocean on Uranus and Neptune? Archived 2019-09-18 at the Wayback Machine (PDF). Geophysical Research Abstracts. 8, 05179.

cseligman.com

Seligman, Courtney. "Rotation Period and Day Length". Archived from the original on 28 July 2011. Retrieved 13 August 2009.

doi.org

Souami, D.; Souchay, J. (July 2012). "The solar system's invariable plane". Astronomy & Astrophysics. 543: 11. Bibcode:2012A&A...543A.133S. doi:10.1051/0004-6361/201219011. ISSN 0004-6361. A133.
Suomi, V.E.; Limaye, S.S.; Johnson, D.R. (1991). "High Winds of Neptune: A possible mechanism". Science. 251 (4996): 929–32. Bibcode:1991Sci...251..929S. doi:10.1126/science.251.4996.929. PMID 17847386. S2CID 46419483.
Airy, G. B. (1 January 1970). "Account of some circumstances historically connected with the discovery of the planet exterior to Uranus". Astronomische Nachrichten No. 585. 25 (10): 131–148. doi:10.1002/asna.18470251002.
Hind, J. R. (1847). "Second report of proceedings in the Cambridge Observatory relating to the new Planet (Neptune)". Astronomische Nachrichten. 25 (21): 309–314. Bibcode:1847AN.....25..309.. doi:10.1002/asna.18470252102. Smithsonian/NASA Astrophysics Data System (ADS).
Helled, Ravit; Nettelmann, Nadine; Guillot, Tristan (2020-03-25). "Uranus and Neptune: Origin, Evolution and Internal Structure". Space Science Reviews. 216 (3): 38. arXiv:1909.04891. Bibcode:2020SSRv..216...38H. doi:10.1007/s11214-020-00660-3. ISSN 1572-9672. S2CID 202558606.
Suomi, V. E.; Limaye, S. S.; Johnson, D. R. (1991). "High winds of Neptune - A possible mechanism". Science. 251 (4996): 929–932. Bibcode:1991Sci...251..929S. doi:10.1126/science.251.4996.929. PMID 17847386. S2CID 46419483.
Hammel, H.B.; et al. (1989). "Neptune's wind speeds obtained by tracking clouds in Voyager images". Science. 245 (4924): 1367–1369. Bibcode:1989Sci...245.1367H. doi:10.1126/science.245.4924.1367. PMID 17798743. S2CID 206573894.
Hammel, H.B.; Lockwood, G. W.; Mills, J. R.; Barnet, C. D. (1995). "Hubble Space Telescope Imaging of Neptune's Cloud Structure in 1994". Science. 268 (5218): 1740–1742. Bibcode:1995Sci...268.1740H. doi:10.1126/science.268.5218.1740. ISSN 0036-8075. PMID 17834994. S2CID 11688794.
Stanley, Sabine; Bloxham, Jeremy (11 March 2004). "Convective-region geometry as the cause of Uranus's and Neptune's unusual magnetic fields". Nature. 428 (6979): 151–153. Bibcode:2004Natur.428..151S. doi:10.1038/nature02376. PMID 15014493. S2CID 33352017.
Schörghofer, Norbert; Hsieh, Henry H. (2018). "Ice Loss From the Interior of Small Airless Bodies According to an Idealized Model". Journal of Geophysical Research: Planets. 123 (9): 2322–2335. arXiv:1802.01293. Bibcode:2018JGRE..123.2322S. doi:10.1029/2018je005568. ISSN 2169-9097. S2CID 119100900.
Holman, Matthew J. (19 August 2004). "Discovery of five irregular moons of Neptune". Nature. 430 (7002): 865–867. Bibcode:2004Natur.430..865H. doi:10.1038/nature02832. PMID 15318214. S2CID 4412380.
Mallama, A.; Hilton, J.L. (2018). "Computing Apparent Planetary Magnitudes for The Astronomical Almanac". Astronomy and Computing. 25: 10–24. arXiv:1808.01973. Bibcode:2018A&C....25...10M. doi:10.1016/j.ascom.2018.08.002. S2CID 69912809.
Christophe; et al. (October 2012). "OSS (Outer Solar System): a fundamental and planetary physics mission to Neptune, Triton and the Kuiper Belt". Experimental Astronomy. 34 (2): 203–42. arXiv:1106.0132. Bibcode:2012ExA....34..203C. doi:10.1007/s10686-012-9309-y. S2CID 55295857.
Based on Irwin, Patrick G J; Dobinson, Jack; James, Arjuna; Teanby, Nicholas A; Simon, Amy A; Fletcher, Leigh N; Roman, Michael T; Orton, Glenn S; Wong, Michael H; Toledo, Daniel; Pérez-Hoyos, Santiago; Beck, Julie (2023-12-23). "Modelling the seasonal cycle of Uranus's colour and magnitude, and comparison with Neptune". Monthly Notices of the Royal Astronomical Society. 527 (4): 11521–11538. doi:10.1093/mnras/stad3761. ISSN 0035-8711.

dx.doi.org

Hammel, H.B.; Lockwood, G. W.; Mills, J. R.; Barnet, C. D. (1995). "Hubble Space Telescope Imaging of Neptune's Cloud Structure in 1994". Science. 268 (5218): 1740–1742. Bibcode:1995Sci...268.1740H. doi:10.1126/science.268.5218.1740. ISSN 0036-8075. PMID 17834994. S2CID 11688794.
Schörghofer, Norbert; Hsieh, Henry H. (2018). "Ice Loss From the Interior of Small Airless Bodies According to an Idealized Model". Journal of Geophysical Research: Planets. 123 (9): 2322–2335. arXiv:1802.01293. Bibcode:2018JGRE..123.2322S. doi:10.1029/2018je005568. ISSN 2169-9097. S2CID 119100900.

eso.org

"Trio of Neptunes". Astrobiology Magazine. 21 May 2006. Retrieved 9 June 2021.

harvard.edu

ui.adsabs.harvard.edu

Souami, D.; Souchay, J. (July 2012). "The solar system's invariable plane". Astronomy & Astrophysics. 543: 11. Bibcode:2012A&A...543A.133S. doi:10.1051/0004-6361/201219011. ISSN 0004-6361. A133.
Suomi, V.E.; Limaye, S.S.; Johnson, D.R. (1991). "High Winds of Neptune: A possible mechanism". Science. 251 (4996): 929–32. Bibcode:1991Sci...251..929S. doi:10.1126/science.251.4996.929. PMID 17847386. S2CID 46419483.
Hind, J. R. (1847). "Second report of proceedings in the Cambridge Observatory relating to the new Planet (Neptune)". Astronomische Nachrichten. 25 (21): 309–314. Bibcode:1847AN.....25..309.. doi:10.1002/asna.18470252102. Smithsonian/NASA Astrophysics Data System (ADS).
Helled, Ravit; Nettelmann, Nadine; Guillot, Tristan (2020-03-25). "Uranus and Neptune: Origin, Evolution and Internal Structure". Space Science Reviews. 216 (3): 38. arXiv:1909.04891. Bibcode:2020SSRv..216...38H. doi:10.1007/s11214-020-00660-3. ISSN 1572-9672. S2CID 202558606.
Suomi, V. E.; Limaye, S. S.; Johnson, D. R. (1991). "High winds of Neptune - A possible mechanism". Science. 251 (4996): 929–932. Bibcode:1991Sci...251..929S. doi:10.1126/science.251.4996.929. PMID 17847386. S2CID 46419483.
Hammel, H.B.; et al. (1989). "Neptune's wind speeds obtained by tracking clouds in Voyager images". Science. 245 (4924): 1367–1369. Bibcode:1989Sci...245.1367H. doi:10.1126/science.245.4924.1367. PMID 17798743. S2CID 206573894.
Hammel, H.B.; Lockwood, G. W.; Mills, J. R.; Barnet, C. D. (1995). "Hubble Space Telescope Imaging of Neptune's Cloud Structure in 1994". Science. 268 (5218): 1740–1742. Bibcode:1995Sci...268.1740H. doi:10.1126/science.268.5218.1740. ISSN 0036-8075. PMID 17834994. S2CID 11688794.
Stanley, Sabine; Bloxham, Jeremy (11 March 2004). "Convective-region geometry as the cause of Uranus's and Neptune's unusual magnetic fields". Nature. 428 (6979): 151–153. Bibcode:2004Natur.428..151S. doi:10.1038/nature02376. PMID 15014493. S2CID 33352017.
Schörghofer, Norbert; Hsieh, Henry H. (2018). "Ice Loss From the Interior of Small Airless Bodies According to an Idealized Model". Journal of Geophysical Research: Planets. 123 (9): 2322–2335. arXiv:1802.01293. Bibcode:2018JGRE..123.2322S. doi:10.1029/2018je005568. ISSN 2169-9097. S2CID 119100900.
Jankowski, David G.; Chyba, Christopher F.; Nicholson, Philip D. (1989). "Tidal evolution in the Neptune-Triton system". Astronomy and Astrophysics. 219 (1–2): L23–L26. Bibcode:1989A&A...219L..23C.
Holman, Matthew J. (19 August 2004). "Discovery of five irregular moons of Neptune". Nature. 430 (7002): 865–867. Bibcode:2004Natur.430..865H. doi:10.1038/nature02832. PMID 15318214. S2CID 4412380.
Mallama, A.; Hilton, J.L. (2018). "Computing Apparent Planetary Magnitudes for The Astronomical Almanac". Astronomy and Computing. 25: 10–24. arXiv:1808.01973. Bibcode:2018A&C....25...10M. doi:10.1016/j.ascom.2018.08.002. S2CID 69912809.
Christophe; et al. (October 2012). "OSS (Outer Solar System): a fundamental and planetary physics mission to Neptune, Triton and the Kuiper Belt". Experimental Astronomy. 34 (2): 203–42. arXiv:1106.0132. Bibcode:2012ExA....34..203C. doi:10.1007/s10686-012-9309-y. S2CID 55295857.

adsabs.harvard.edu

A. Bouvard (1821), Tables astronomiques publiées par le Bureau des Longitudes de France. Paris: Bachelier
Suomi, V. E.; Limaye, S. S.; Johnson, D. R. (1991). "High winds of Neptune - A possible mechanism". Science. 251 (4996): 929–932. Bibcode:1991Sci...251..929S. doi:10.1126/science.251.4996.929. PMID 17847386. S2CID 46419483.
Hammel, H.B.; et al. (1989). "Neptune's wind speeds obtained by tracking clouds in Voyager images". Science. 245 (4924): 1367–1369. Bibcode:1989Sci...245.1367H. doi:10.1126/science.245.4924.1367. PMID 17798743. S2CID 206573894.

articles.adsabs.harvard.edu

Hind, J. R. (1847). "Second report of proceedings in the Cambridge Observatory relating to the new Planet (Neptune)". Astronomische Nachrichten. 25 (21): 309–314. Bibcode:1847AN.....25..309.. doi:10.1002/asna.18470252102. Smithsonian/NASA Astrophysics Data System (ADS).

historyofinformation.com

"Neptune: The first planet discovered by mathematical rather than observational means: discovered simultaneously by Le Verrier and Adams : History of Information". Jeremy Norman's History of Information. Retrieved 2021-06-14.

imcce.fr

promenade.imcce.fr

"Encyclopedia - the brightest bodies". IMCCE. Archived from the original on 24 July 2023. Retrieved 2023-05-29.

inaf.it

odinus.iaps.inaf.it

"Origins, Dynamics and Interiors of Neptunian and Uranian Systems". Retrieved 5 August 2015.

indiatoday.in

"With each season lasting over 40 years, Neptune is cooler than we thought". India Today. Retrieved 2023-06-11.

lumenlearning.com

courses.lumenlearning.com

"Planet Neptune | Introduction to Astronomy". courses.lumenlearning.com. Retrieved 2021-06-15.

medium.com

"Astronomers Make the Case for a Mission to Neptune and Uranus". The Physics arXiv Blog. arXiv. 17 February 2014. Retrieved 5 August 2015.

nasa.gov

solarsystem.nasa.gov

"Enabling Exploration with Small Radioisotope Power Systems" (PDF). NASA. September 2004. Archived from the original (PDF) on 22 December 2016. Retrieved 26 January 2016.
Laboratory, By NSF’s NOIRLab (National Optical-Infrared Astronomy Research. "Why Uranus and Neptune Are Different Colors". NASA Solar System Exploration. Retrieved 2023-03-06.
"In Depth | Neptune". NASA Solar System Exploration. Retrieved 2021-06-14.
"Enabling Exploration with Small Radioisotope Power Systems" (PDF). 22 December 2016. Archived (PDF) from the original on 2016-12-22. Retrieved 10 May 2021.
"Solar System Exploration: Multimedia: Gallery". National Aeronautics and Space Administration (NASA). 2010-03-17. Archived from the original on 2010-03-17. Retrieved 2021-06-23.
"Neptune". NASA. Archived from the original on 13 December 2006. Retrieved 11 November 2010.
"Solar System Temperatures". NASA Solar System Exploration. Retrieved 2021-06-12.
"In Depth | Neptune". NASA Solar System Exploration. Retrieved 10 May 2021.
"In Depth | Triton". NASA Solar System Exploration. Archived from the original on 2018-08-17. Retrieved 2021-06-13.
"In Depth | Nereid". NASA Solar System Exploration. Archived from the original on 2021-06-11. Retrieved 2021-06-11.
"In Depth | Larissa". NASA Solar System Exploration. Archived from the original on 2021-06-27. Retrieved 2021-06-15.
"Exploration | Neptune". NASA Solar System Exploration. Retrieved 15 May 2021.

nasa.gov

Mars, Kelli (2021-09-22). "175 years ago: Astronomers discover Neptune, the eighth planet". NASA. Retrieved 2022-03-22.
Gianopoulos, Andrea (2023-08-16). "Neptune's Disappearing Clouds Linked to the Solar Cycle". NASA. Retrieved 2023-08-27.
Greicius, Tony (2015-02-17). "Voyager Map Details Neptune's Strange Moon Triton". NASA. Archived from the original on 2021-03-09. Retrieved 2021-06-11.
Steigerwald, Bill (2019-03-14). "Hubble Tracks the Lifecycle of Giant Storms on Neptune". NASA. Retrieved 2021-06-11.
Steven Oleson (7 May 2015). "Triton Hopper: Exploring Neptune's Captured Kuiper Belt Object". NASA Glenn Research Center. Retrieved 11 February 2017.

ssd.jpl.nasa.gov

"HORIZONS Planet-center Batch call for September 2042 Perihelion". ssd.jpl.nasa.gov (Perihelion for Neptune's planet-center (899) occurs on 2042-Sep-04 at 29.80647406au during a rdot flip from negative to positive). NASA/JPL. Archived from the original on 7 September 2021. Retrieved 2021-09-07.
Yeomans, Donald K. "HORIZONS Web-Interface for Neptune Barycenter (Major Body=8)". JPL Horizons On-Line Ephemeris System. Archived from the original on 7 September 2021. Retrieved 18 July 2014.—Select "Ephemeris Type: Orbital Elements", "Time Span: 2000-01-01 12:00 to 2000-01-02". ("Target Body: Neptune Barycenter" and "Center: Solar System Barycenter (@0)".)
Yeomans, Donald K. "HORIZONS Web-Interface for Neptune Barycenter (Major Body=8)". JPL Horizons On-Line Ephemeris System. Archived from the original on 7 September 2021. Retrieved 18 July 2014.—Select "Ephemeris Type: Orbital Elements", "Time Span: 2000-01-01 12:00 to 2000-01-02". ("Target Body: Neptune Barycenter" and "Center: Solar System Barycenter (@0)".)
Yeomans, Donald K. "HORIZONS Web-Interface for Neptune Barycenter (Major Body=8)". JPL Horizons On-Line Ephemeris System. Archived from the original on 7 September 2021. Retrieved 18 July 2014.—Select "Ephemeris Type: Orbital Elements", "Time Span: 2000-01-01 12:00 to 2000-01-02". ("Target Body: Neptune Barycenter" and "Center: Solar System Barycenter (@0)".)

nssdc.gsfc.nasa.gov

Williams, David R. (1 September 2004). "Neptune Fact Sheet". NASA. Archived from the original on 1 July 2010. Retrieved 14 August 2007.
At 102.413×10²⁴kg,"Neptune Fact Sheet". nssdc.gsfc.nasa.gov. Retrieved 2021-06-14.

photojournal.jpl.nasa.gov

Lavoie, Sue (16 February 2000). "PIA02245: Neptune's blue-green atmosphere". NASA JPL. Archived from the original on 5 August 2013. Retrieved 28 February 2008.
"Catalog Page for PIA00064". Jet Propulsion Laboratory California Institute of Technology. Retrieved 10 May 2021.

eclipse.gsfc.nasa.gov

Espenak, Fred (20 July 2005). "Twelve Year Planetary Ephemeris: 1995–2006". NASA. Archived from the original on 5 December 2012. Retrieved 1 March 2008.

science.nasa.gov

Abigail Rymer; Brenda Clyde; Kirby Runyon (August 2020). "Neptune Odyssey: Mission to the Neptune-Triton System" (PDF). Archived from the original (PDF) on 15 December 2020. Retrieved 18 April 2021.

nature.com

Holman, Matthew J. (19 August 2004). "Discovery of five irregular moons of Neptune". Nature. 430 (7002): 865–867. Bibcode:2004Natur.430..865H. doi:10.1038/nature02832. PMID 15318214. S2CID 4412380.

newscientist.com

"Neptune's rings are fading away". New Scientist. 26 March 2005. Retrieved 9 June 2021.

newtimes.co.rw

"Planet Neptune's moons". The New Times | Rwanda. 2010-05-29. Retrieved 2021-06-15.

nih.gov

pubmed.ncbi.nlm.nih.gov

Suomi, V.E.; Limaye, S.S.; Johnson, D.R. (1991). "High Winds of Neptune: A possible mechanism". Science. 251 (4996): 929–32. Bibcode:1991Sci...251..929S. doi:10.1126/science.251.4996.929. PMID 17847386. S2CID 46419483.
Suomi, V. E.; Limaye, S. S.; Johnson, D. R. (1991). "High winds of Neptune - A possible mechanism". Science. 251 (4996): 929–932. Bibcode:1991Sci...251..929S. doi:10.1126/science.251.4996.929. PMID 17847386. S2CID 46419483.
Hammel, H.B.; et al. (1989). "Neptune's wind speeds obtained by tracking clouds in Voyager images". Science. 245 (4924): 1367–1369. Bibcode:1989Sci...245.1367H. doi:10.1126/science.245.4924.1367. PMID 17798743. S2CID 206573894.
Hammel, H.B.; Lockwood, G. W.; Mills, J. R.; Barnet, C. D. (1995). "Hubble Space Telescope Imaging of Neptune's Cloud Structure in 1994". Science. 268 (5218): 1740–1742. Bibcode:1995Sci...268.1740H. doi:10.1126/science.268.5218.1740. ISSN 0036-8075. PMID 17834994. S2CID 11688794.
Stanley, Sabine; Bloxham, Jeremy (11 March 2004). "Convective-region geometry as the cause of Uranus's and Neptune's unusual magnetic fields". Nature. 428 (6979): 151–153. Bibcode:2004Natur.428..151S. doi:10.1038/nature02376. PMID 15014493. S2CID 33352017.
Holman, Matthew J. (19 August 2004). "Discovery of five irregular moons of Neptune". Nature. 430 (7002): 865–867. Bibcode:2004Natur.430..865H. doi:10.1038/nature02832. PMID 15318214. S2CID 4412380.

ncbi.nlm.nih.gov

Broadfoot A.L.; Atreya S.K.; Bertaux J.L.; et al. 1999. Ultraviolet Spectrometer Observations of Neptune and Triton. Science. 246 (4936): 1459–66. Bibcode:1989Sci...246.1459B. doi:10.1126/science.246.4936.1459. PMID 17756000. S2CID 21809358. Archived (PDF) from the original on 28 May 2008. Retrieved 12 March 2008.

nineplanets.org

"Neptune". nineplanets.org. Retrieved 5 November 2010.

noirlab.edu

info@noirlab.edu. "Gemini North Telescope helps explain why Uranus and Neptune are different colors - observations from Gemini Observatory, a program of NSF's NOIRLab, and other telescopes reveal that excess haze on Uranus makes it paler than Neptune". www.noirlab.edu. Retrieved 2022-07-30.

nytimes.com

Andrews, Robin George (2023-08-18). "Neptune's Clouds Have Vanished, and Scientists Think They Know Why". The New York Times. ISSN 0362-4331. Retrieved 2023-08-27.
Chang, Kenneth (18 August 2014). "Dark Spots in Our Knowledge of Neptune". The New York Times. ISSN 0362-4331. Retrieved 15 May 2021.
"Neptune's Moon Triton Is Destination of Proposed NASA Mission". New York Times. 2019-03-19. Retrieved 27 March 2019.

oed.com

"Neptunian". Oxford English Dictionary. Oxford University Press. 2nd ed. 1989.

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