# All Questions

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### Is a charged-coupled-devices tag okay? If so, what would be good usage guidance for it?

I've just added the new tag charge-coupled-devices to How often are electron-multiplying CCDs used in telescope focal planes? Will Nancy Grace Roman be the first use in a space telescope? since that's ...
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### Why do we care if Pluto is classified as a planet? [closed]

Why do we care if Pluto is classified as a planet? Classification doesn't change anything fundamental about Pluto, like the orbital parameters or composition. We can't hurt an inanimate object's ...
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### 2020: a year in moderation

As we say goodbye to the old year and welcome the new one, we have a tradition of sharing moderation stats for the past 12 months. As most of you here are aware, sites on the Stack Exchange network ...
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### Is it possible to recover the text from my polarization-dependent apodization question about CHIME?

Canada's CHIME radio telescope is a unique design which is discussed at some length in this answer. I a comment below the question there I link to a question (presumably of mine) titled How does ...
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### Can we make arguments that Pluto should be considered a planet off-topic?

It has been over 14 years since the IAU passed its definition of what constitutes a planet, and we still get arguments (mostly rants) against that decision. For example, Where to submit, or ask to ...
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### Tag definitions for solar-flare and solar-storm?

The solar-storm tag has 8 questions and no usage guidance. The solar-flare tag has 32 questions and the following guidance: Questions regarding a sudden brightness increase due to the release of ...
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### Cavalier insta-closing of a new user's first question without even giving them a chance to respond?

A new user, just joined today, asked their first question. When this happens I think of "be welcoming" before I think of "what can I close today?" After only a few hours close as ...
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### What do folks think about adding (time-) dispersion and time-domain tags?

For Do ASKAP and ALMA have "fast dump" interferometric modes? Can they see and perhaps report Fast Radio Bursts in real time? I've created two new tags: [tag:] and [tag:]. Before I start ...
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### Post your pictures of the Great Conjunction here!

today and tomorrow are the times when Jupiter and Saturn are really close to each other (less than a tenth of a degree apart)!!! So I just want to reach out to everyone for them to share their photos ...
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### How to use the tags specific-tag and tagging tags here in meta? Do we need all of them?

I've tagged I think that we have no good tags for solar-system-evolution or asteroid-formation or asteroid-evolution. Should we? with tags, specific-tag and tagging because I don't know which ones to ...
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### I think that we have no good tags for solar-system-evolution or asteroid-formation or asteroid-evolution. Should we?

The questions What is the YORP effect exactly? Is it just the non-central component of the Yarkovsky effect? Where have all the Vulcanoids gone? (and there are likely other examples) ask bout a ...
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### Should the wording on the 'close vote' window dialogue be changed?

If a question on Astronomy Stack Exchange is off-topic and we vote to close, we get this window: Then, if we click on "A community-specific reason" we get this window: This kind of implies ...
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### Shall we continue to agree that good SETI and extraterrestrial questions are on-topic? What about METI?

We currently have 19 questions tagged with seti One was recently closed and one has two close votes, and extra-terrestrial has 35 questions. Going through these it seems that some good SETI and ...
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### When is the next Moderator Election?

Okay, so our newest moderator (HDE 226868) was appointed in 2018. So I am wondering, when will our next moderator election occur?
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### Congratulations Astronomy Stack Exchange for 10k questions!

I just checked the question count, and discovered that we hit 10k overnight (well actually a few hours after 0:00 UTC) :D So I just want to say congratulations to everyone here, the moderators, all ...
29 views

### Should the tags stellar-classification and spectral-type be merged?

We have two tags, spectral-type and stellar-classification. The former appears to be slightly more popular, and the latter appears to have been mostly used on questions about spectral types? Do we ...
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I like answering old, unanswered questions because there aren't many new ones I know enough to answer. In many cases the answers are mostly laid out in the comments. I suspect no one then wants to ...
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### How could I use siunitx package in the form?

When using the SI unit in the sinunitx package on the astronomy StackExchange page, it cannot display the correct unit I was hoping for: $1\mathrm{kg}$ instead of $\SI{1}{kg}$
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### Are “vague” edit comments acceptable?

Often, I edit questions, and put a simple comment into the edit box, like "minor edit" or "major changes" and what not. Is this too vague and needs to be more specific, or is it ...
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### Request to use image

I recently retired from teaching Middle School and High School Science for 37 years in Texas. I am now writing a book series called "The Science Sleuths." Book #5 is called "Adventures ...
201 views

I have been looking at the unanswered questions on this site for some time (for some days tbh) and in my opinion, most of them are very intriguing and interesting and they deserved to get answered. ...
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### Why are other questions about messages to aliens on-topic but this one isn't? Was answer-blocking premature in this case?

These seem to be accepted by the community Who or what will the Arecibo message reach? +6, 1 answer Is broadcasting the location of Earth to potential extraterrestial civilization regulated? +5, 1 ...
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### Do we need separate tags for [habitable-zone] and [goldilocks-zone]?

We have separate tags for habitable-zone and goldilocks-zone — does it make sense to keep both of these? Of the two, habitable-zone appears to be used more frequently, although its tag wiki entry does ...
145 views

### Etiquette for user-created external resource links in posts

I've just discovered that one of our old users (barrycarter, now "user21"), who is no longer with us, used a personal, unlicensed github repository in 31 of his posts: https://data....
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### Are questions about equipment instructions on-topic here?

I have bought an amateur telescope recently. Can I ask other members detailed questions like "How can I work with my telescope?" or "How do I set my telescope on a specific celestial ...
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### Do we need both ephemeris and ephemerides tags?

I just noticed that we we have both ephemeris (35 questions) and ephemerides (6 questions) tags. I can't see how the six questions that have ephemerides need it, and I'm guessing that ephemeris is all ...
29 views

### I need help rewording this unwieldily title

The current title is former title was How error bars on recent speed of gravity determination from gravitational waves and coincident gamma ray burst? Was Hubble constant in there? and it is explained ...
177 views

### When should [early-universe] end?

Do we want it to be equal to the definition at Wikipedia, i.e. ending with cmb? Currently we have questions like these: Will James Webb see Population III stars? Characteristics of the first planets ...
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### Questions pertaining to ongoing competitions

As part of the International Astronomy and Astrophysics Competition, the pre final round question sheet has been released. Should questions regarding answers to the paper be closed, or at least have ...
250 views

### Is [space-travel] on topic here?

Is space-travel on topic for the site? To me it looks like a big red flag that the question actually belongs on Space Exploration, or in the more hypothetical cases Worldbuilding. Looking at the ...
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### Should the “naming” and “nomenclature” tags be merged?

We have both naming and nomenclature - does it make sense to have these as separate tags, or should we merge them? If so, which one would be preferred?
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### Is “solve this n-body system for me” on topic here?

Are worldbuilding-style questions which boil down to "is this n-body system I've invented stable" on-topic for this site? As examples I am talking about things like Is this a potential planetary ...
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### Should we update definitions and remove the 100 GHz hard limits on radio astronomy related tags?

I just noticed that some of the following tag definitions include upper limits on frequency: radio: Questions about the part of the electromagnetic spectrum between 10 MHz and 100 GHz. radio-...
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### Science stack exchanges helping other science stack exchanges!

The Physics Meta promotes support for all Science sites on Stack Exchange, in this post. The same meta post is now on several other science SE Meta sites. The Astronomy SE is one of the sites that has ...
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### Should this question be reopened or a new and improved version of the question posted?

The question Do stars come on like LEDs or wick lamps? was closed as duplicate of Timescale of ignition of a protostar?. A comment says Actually, it's not the same question, because this question ...
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### Is astrobiology on topic here?

A question that occurred to me in regards to the off-topic closure of this question about Martian tetanus, are questions about astrobiology on topic here? The parts of the question about human ...
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### A modest proposal to increase question quality

Highly related: What can we do about the deteriorating quality of questions? This related question was asked over five years ago, and the situation has not improved. My perception is the opposite: A ...
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### Create a wiki entry for future Starlink launches?

With the recent 2020-03-18 delayed-from-Sunday launch of the latest SpaceX mission for the build-out of the Starlink constellation, I am expecting another round of the "what is this set of bright ...
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### Pile-on down voting without a single comment explaining why or how to edit, is this how a site should work? How close was my guess?

The question Why isn't Eris considered a planet despite being the body of dominant mass? received three down votes in its first three hours, but with none of the down voters leaving any clues as to ...
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### Are there any IAU members on the astronomy stack exchange?

Are there any members of the International Astronomical Union that are active on this astronomy stack exchange?
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### Is there a consensus on the capitalization of Sun, Moon, Earth and the planets on this site?

The English Language and Usage SE has this question "What is the correct capitalization of the words earth and moon?" but I do not see this issue dealt with on this here. Is there any guidance ...
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### Should questions about specific geographic features on rocky planets in our solar system be on-topic here?

Planetary science questions are generally on-topic both here and in Space Exploration SE. The recent and rapidly answered question How can I find the depth of a portion of the Valles Marineris? ...
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I posted Will the James Webb Space Telescope be able to see the Spitzer Space Telescope (assuming…)? in Space Exploration SE because the observer and observed are both spacecraft, but now I'm ...
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### Community Policy Repository

This is the official repository for general community policy decisions. On Posts How do we handle questions with answers on other sites? On Topics Scope Are astrophysics, cosmology, and theoretical ...
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### How do we handle questions with answers on other sites?

I asked a question about black holes that already had an answer on the Physics Stack Exchange. This has raised quite some discussion in the comments, as to how questions that are on-topic for several ...
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### Returning to moderation

I've been giving a lot of thought to the question of resignation over the weekend, and one thing that kept going through my head was Jon Ericson's blog post. Despite what he had to say about ...
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As of 12:30 UCT on the 15th of January 2020, four of the fifteen newest questions are about Starlink satellites. Should we consider having one, definitive answer and closing any new questions as ...
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### Is “what star did I see?” on topic?

What do we do with questions that can be answered easily by opening Stellarium or other similar software, such as Several stars in line Which Planet/Star is it? What's that very bright star (south-...
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### I'm taking a leave of absence from moderating

Update 1/20/2020: called2voyage has resumed moderation, more info here. I’ve wrestled for some time with how to approach this issue, but I’ve finally come to a decision. The bottom-line is that it ...
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### 2019: a year in moderation

It's New Year's Day in Stack Exchange land... A distinguishing characteristic of these sites is how they are moderated: We designed the Stack Exchange network engine to be mostly self-regulating, ...

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