Talk:Gaia (spacecraft)

message: The third and subsequent dates for data releases are listed in the source as "TBC" (to be confirmed, no year specified). In particular, if the mission is extended by as much as four more years (and, dare we hope, more?), there could be even more releases beyond 2022.   TomS TDotO (talk) 05:18, 21 September 2016 (UTC)
replies: text: Agree that there seems to be some ambiguity about the later data releases; on the one hand the research community will want prompt access to the data as it is produced; on the other there will be later releases if the missin is extended.  I suspect (no evidence as yet) that ESA will provide regular interim releases with the final release after end of mission.  Any way we could express the ambiguity in the article without straying into WP:OR? --SteveMcCluskey (talk) 13:01, 21 September 2016 (UTC)
thread_title:  Data releases 

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thread_title:  External links modified 

message: How does the name “Gaia” imply the use of interferometry? I am inclined to strike that line unless someone can explain this to me. It makes no sense and can be confusing or the reader. 
“Despite its name, Gaia does not actually use interferometry to determine the positions of stars”
OriEri (talk) 00:06, 17 January 2019 (UTC)
replies: text: Read the History section. It states: "The name "Gaia" was originally derived as an acronym for Global Astrometric Interferometer for Astrophysics. This reflected the optical technique of interferometry that was originally planned for use on the spacecraft. While the working method evolved during studies and the acronym is no longer applicable, the name Gaia remained to provide continuity with the project.[21]"   Cheers, Rowan Forest (talk) 01:00, 17 January 2019 (UTC)
replies: text: While true I agree with OriEri the line in Measurement Principles is unnecessarily confusing because of the lack of context. It's already been explained in the History section in a more complete and less confusing way, so it seems superfluous here.  All that section needs to say it was originally an interferometer and now it's not.ChiZeroOne (talk) 01:13, 17 January 2019 (UTC)
thread_title:  Interferometry?? 

message: This implies that it hasn't yet started doing so.  — Preceding unsigned comment added by 31.50.84.235 (talk) 11:41, 5 February 2019 (UTC)
replies: text: Launched in 2013, anyone can figure it is in the process of mapping. Rowan Forest (talk) 23:32, 5 February 2019 (UTC)
thread_title: Gaia will create a precise three-dimensional map ...

message: The article (as well as ESA's statements) are inconsistent with regards to exoplanet detection. While the introduction as well as ESA's original description of Gaia do mention planetary detection, Gaia's current mission status clearly states that Gaia's radial velocity measurement equipment will not be sensitive enough to detect exoplanets.. The article should thus be changed accordingly or at least include this more recent assessment of Gaia's capabilities (Pcauchy (talk) 13:34, 15 March 2019 (UTC)
replies: text: The detections are expected to come from astrometry (detecting periodic variation of the position of the star in the sky), not from radial velocity measurements. --mfb (talk) 14:03, 15 March 2019 (UTC)
thread_title:  Inconsistencies in claims towards exoplanet detection 

message: An IP recently changed two images to reflect the latest data release (EDR3). These images were reverted by Drbogdan because the older image "seems better" and requested comment on talk.
I have restored the IP's edit since it reflects the current status of Gaia data releases; I trust this is satisfactory. --SteveMcCluskey (talk) 21:59, 12 December 2020 (UTC)
replies: text: Thank you for your comments - yes - all seems ok after all - no problem whatsoever - Thanks again - Stay Safe and Healthy !! - Drbogdan (talk) 22:49, 12 December 2020 (UTC)
thread_title:  Early Data Release 3 Images 

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thread_title:  A Commons file used on this page or its Wikidata item has been nominated for speedy deletion