Talk:Voyager 2/GA1

GA Review

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Nominator: The Herald (talk · contribs) 10:46, 30 April 2024 (UTC)

Reviewer: Cambalachero (talk · contribs) 19:24, 13 May 2024 (UTC)

Lead

• Seems fine. The "as of April 2024" may be updated with the current numbers, but there's a hidden note of not doing so more than once a month, so I didn't touch anything. Is the idea to update it only when updating the month, to do it at some certain day, or some other precise system?

Images

• File:Voyager spacecraft model.png - Y
• File:Interstellar probes trajectory.svg - Y
• File:Voyager Program - RTG diagram 1.png - The PDF can't be accessed, and the site hosting it (planetary.s3.amazonws.com) does not have NASA in the name. Worse, when googling it the results are not about astronomy, and there are even some malware report pages.
• File:Voyager Program - RTG diagram 2.png - Same thing
• File:Voyager Program - RTG upclose.png - Same thing
• File:Voyager - Filters - Clear.png - Y
• File:Voyager - Filters - UV.png - Y
• File:Voyager - Filters - Violet.png - Y
• File:Voyager - Filters - Blue.png - Y
• File:Voyager - Filters - Green.png - Y
• File:Voyager - Filters - Orange.png - Y
• File:Voyager - Filters - CH4U.png - Y
• File:Voyager - Filters - NaD.png - Y
• File:Voyager - Filters - CH4JST.png - Y
• File:Voyager Program - spacecraft diagram.png - Same thing with the other diagrams
• File:Voyager Testing 1976 PIA21732.jpg - Y
• File:Voyager 2 is encapsulated.jpg - Dead link
• File:Voyager 2 skypath 1977-2030.png - Y
• File:Voyager2 1977-2019-overview.png - Y
• File:Voyager2 1977-2019-skew.png - Y
• File:Titan 3E Centaur launches Voyager 2.jpg - Dead link
• File:Animation of Voyager 2 trajectory.gif - Y
• File:Voyager 2 path.svg - Dead link
• File:Voyager 2 velocity vs distance from sun.svg - Y
• File:Animation of Voyager 2's trajectory around Jupiter.gif - Y
• File:Voyager-2 Jupiter-flyby July-10-1979.png - Y
• File:Jupiter - Region from the Great Red Spot to the South Pole.jpg - Y
• File:Voyager 2 Jupiter Io.jpg - Y
• File:Crescent Europa - GPN-2000-000469.jpg - Dead link
• File:PIA00081 Ganymede Voyager 2 mosaic.jpg - Y
• File:Callisto - PIA00457.jpg - Y
• File:Jupiter Ring.png - Y
• File:Jupiter - PIA02257.gif - Y
• File:Saturn (planet) large.jpg - Dead link
• File:Voyager 2 - Saturn - 3115 7854 2.png - Dead link
• File:Voyager 2 - Tethys - 3149 7888 1.jpg - Dead link
• File:Voyager 2 - Tethys - 3119 7858 2.png - Dead link
• File:Voyager 2 - Titan - 3128 7866 2.png - Dead link
• File:Voyager 2 - Titan - 3092 7807 2.png - Dead link
• File:Iapetus by Voyager 2.jpg - Y
• File:Voyager 2 - Saturn Rings - 3085 7800 2.png - Y
• File:Uranus Voyager2 color calibrated.png - Y
• File:Uranus Final Image.jpg - Y
• File:Miranda2.JPG - Y
• File:Ariel Closest Approach.jpg - N No link to source (and no {{information}} template, that is optional but a usual standard).
• File:Titania (moon) color, cropped.jpg - Y
• File:PIA00040 Umbrielx2.47.jpg - Y
• File:Voyager 2 picture of Oberon.jpg - Y
• File:Uranian rings PIA01977.jpg - Y
• File:Neptune Voyager2 color calibrated.png - Y
• File:Voyager 2 Neptune and Triton.jpg - Y
• File:Despina.jpg - Y
• File:Larissa.jpg - N generic link to the NASA homepage.
• File:Proteus (Voyager 2).jpg - Dead link
• File:Triton moon mosaic Voyager 2 (large).jpg - Y
• File:Neptune clouds.jpg - Y
• File:Rings of Neptune PIA01997.png - Y
• File:PIA22924-Voyager2LeavesTheSolarSystem-20181105.jpg - Y
• File:Voyager speed and distance from Sun.svg - Y
• File:PIA22921-Voyager2-Position-20181210.jpg - Y
• File:Voyager spacecraft structurePWSred.jpg - N Derivative of a derivative of File:Voyager spacecraft structure.jpg, with no source
• File:72413main ACD97-0036-3.jpg - Dead link
• File:Voyager Golden Record.jpg - Derivative of File:Voyager Golden Record.jpg, with no source. But perhaps it can be fixed with details from File:The Sounds of Earth Record Cover - GPN-2000-001978.jpg

On a general overview, the article has way too many images. Try to be a bit more selective.

History

• You should link to Syzygy (astronomy), a planetary alignment.
• Saturn has many moons. Why was the study of Titan so important that they even considered sending both Voyagers there?
• Why link "The Earth" instead of just "Earth"?
• "Scientific instruments" has an unresolved maintenance tag

Mission profile

• Section is only a pair of giant images and a table, with no text.

Launch and trajectory

• First paragraph has no references
• File:Voyager 2 path.svg is unreadable at article size
• File:Voyager 2 velocity vs distance from sun.svg, the first sentence is enough. The second is clarification and can go in a note, to reduce bloating.
• Is it appropriate to place the images in the middle of the text? Why not at the end of the subsections, as below?
• The second paragraph is only one line and a half long, and half of it is about Voyager 1.
• "a complication arose" is a bit redundant, just explain directly what happened.
• The paragraph ends with no reference

Encounter with Jupiter

• Exploration of Jupiter is about all explorations of Jupiter, not just the Voyager 2. Use {{See also}} or {{Further}}, not {{Main}}.
• The article is already using way too many images, but this is a bit over the top. 8 images below and 2 to the sides, 10 images in a section!
• Link to Volcanism on Io

Encounter with Saturn

• Again, "Exploration of..." is not a proper main article
• Again, way too many images.
• There are photos of Enceladus, Tethys, Titan, Iapetus, but not a single word about what did Voyager 2 saw when they were studied.

Encounter with Uranus

• Again, "Exploration of..." is not a proper main article
• Given the discussion about Uranus' axis, a link to Uranus#Axial_tilt may be appropriate.
• Unlink "hypothesis", just a common word.

Encounter with Neptune

• Again, "Exploration of..." is not a proper main article
• Link Rings of Neptune

Interstellar mission

• "In 1992, Voyager 2 observed the nova V1974 Cygni in the far-ultraviolet." Single-sentence paragraph. Nothing to add to it?
• There is an unresolved "As of?" tag
• 7th paragraph has no references
• First they announce that Voyager 2 would reach interstellar space in 2016, and then report it in 2018. Was it a delay, or did they incorrectly measured the distances and speeds involved?
• "As a failsafe measure, the probe is also programmed to autonomously reset its orientation to point towards Earth, which would have occurred by October 15." No reference

Reductions in capabilities

• Many entries in the table are not referenced.
• We're in 2024. 2016 and 2020 are in the past, so "approx" is not appropriate. If those things happened in those years, remove it. If the happened in another year or not yet, fix it.
• "The probe is expected to keep transmitting weak radio messages until at least the mid-2020s, more than 48 years after it was launched." Does NASA have further plans for Voyager when that moment comes, or will it be completely on its own from then on?

Golden record

• Link Extraterrestrial intelligence

As of May 14 the nominator was on vacation, so this review will be on hold until he returns and has a chance to answer it. Cambalachero (talk) 18:32, 27 May 2024 (UTC)