24 votes

Is it possible to do moon sighting in advance for 5 years with 100% accuracy?

Note: this answer was posted under duress; though I mentioned in a comment under the question that I was composing an answer, several users have decided to close the question out from under me. ...
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  • 31.4k
17 votes
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Stargazing (Tenerife) - different quality today and yesterday

If you want to see the milky way, you really need the moon to have set. The moon sets about 50 minutes later each day, so you will need to go later. On the 28th of July, the moon sets at about 2 am ...
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13 votes
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Can you still see Polaris even if you are in the south pole?

Currently Polaris is at a declination of a bit over 89 degrees, which means that no one south of 1 degree south latitude can see Polaris. That's almost all of the Southern hemisphere, let alone the ...
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  • 27.1k
13 votes
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Is there a webpage that shows the night sky but can filter out dim stars?

I think your requirements can be met by Stellarium. It is a freely available open-source planetarium software available for PC, and can be used offline. There is also a web version, which you can try ...
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11 votes
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Aren't there more naked-eye-visible stars in the Milky Way plane?

You can tell a lot about Galactic structure by just looking and indeed the distribution of bright stars is non-spherical and non uniform. The ~5000 stars that can be seen with the naked eye have a ...
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  • 114k
9 votes

Can you still see Polaris even if you are in the south pole?

While the majority of the celestial sky is visible on both hemispheres, you are not able to see Polaris on the south pole, since Polaris is pointing directly towards the north pole. I know that during ...
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6 votes
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First time visit to dark sky stargazing site: what do I need?

If you have yet to plan your adventure and the moon is not you main target, be sure to set your date nearest a "New Moon". During this phase the moon will not be visible at night, reducing the light ...
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  • 176
6 votes
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Is there a 'South Star'?

There is a "South Star" called Sigma Octanis located in the constellation Octans, but it is so dim that virtually nobody calls it the south star. Just another side note: Polaris doesn't always point ...
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  • 318
6 votes

How can I make Stellarium match the magnitude of stars visible in London, UK?

Ok go on Stellarium then hover over the left side of the screen afterwards click on the location and select London, England (City Of London is the original walled city), then go and hover over the ...
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  • 1,051
5 votes

Aren't there more naked-eye-visible stars in the Milky Way plane?

Firstly, the galaxy is only about 1000ly thick. We are fairly close to the galactic plane, maybe around 65 ly 'above' it if we call the direction we are moving away from 'down'. So on your assumption ...
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5 votes
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Which stars, identifiable with the naked eye, have exoplanets?

Stars with an apparent magnitude of 7.0 or greater are typically not visible to the naked eye. So if you take a list of exoplanetary host stars, such as this, and you sort by apparent magnitude, in ...
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  • 6,084
5 votes
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Color changing celestial body near the moon

Judging by the time of your post, I would probably say the star you saw was Aldebaran as it was very close to the moon on that night. It's the brightest star in the constellation Taurus so is easily ...
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  • 743
5 votes
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Does Polaris have a trail in the sky timelapse?

Does Polaris have a trail in the sky timelapse? Yes. Every star has a trail, but it's smaller if it's closer to the pole. Polaris is close to the pole but it's still 45 (arc)minutes away. I don't ...
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  • 4,575
4 votes

Can you still see Polaris even if you are in the south pole?

At the South pole no stars north of the celestial equator will be visible. The general equations of the declination limit at a given latitude: declination limit = $latitude - 90$ (for the ...
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4 votes

What constellation would the Sun be in from an exoplanet?

The sun would appear roughly half-way between Capella and the W of Cassiopeia. The constellations are a human invention, and don't correspond to actual groups of stars. Since all the nearby stars ...
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  • 87.7k
4 votes
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Fixed star-like light appears for a second or two - is there a way to find out what it was?

I think that it was most likely the satellite "LEO Vantage 1". From https://space.skyrocket.de/doc_sdat/leo-vantage-1.htm : Telesat ordered in April 2016 two prototype Ka-band HTS (High ...
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  • 1,488
3 votes

Is there any official star gazing location list?

You may be out of luck. If you live pretty much anywhere in the North East, there are very few locations where you can see a truly dark sky. You might be able to get somewhere where you can see the ...
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  • 14.4k
3 votes
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Which Planet/Star is it?

The site in-the-sky.org has a wide variety of functions and options. In Planetarium mode, I chose a random city at about 24N and in the middle, which helps to get the correct UTC + 05:30 India Time ...
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  • 31.4k
3 votes

app to locate star by coordinates

There are apps which will help guide you to more significant stars (Google skymap comes to mind if you're looking for a simple mobile system - Stellarium may also be a good option), but it's highly ...
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3 votes
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During what time of the year can Centaurus be seen from Tokyo?

You can use an application that shows the stars at any time and location. Stellarium is free, has nice features and isn't too complicated. You can select a star/constellation and flip through the time ...
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  • 259
3 votes
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Location of the milky way in August in Death Valley

The Milky Way will be in a straight line that goes from SSW, (a bearing of about 200 degrees) almost directly overhead and to the NE. The brightest part of the Milky way will be low in the sky in the ...
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  • 87.7k
3 votes

Does Polaris have a trail in the sky timelapse?

Polaris is about 1 degree from the celestial North Pole. An image with sufficient magnification and sufficient exposure time will show a (short) trail for Polaris. The difference between the images ...
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  • 87.7k
3 votes
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Binocular highlights from Tasmania next few weeks?

My favorite resource for this sort of thing is the Skymaps.com evening sky map. The southern hemisphere edition is drawn for 35°S latitude. The November issue doesn't show the Milky Way, which ...
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  • 16.5k
3 votes

Binocular highlights from Tasmania next few weeks?

I concur with those by Mike G but add : eta Carina region: Milky Way between Southern and false cross. Most spectacular region apart from near Scorpius Sagittarius region Omega Centauri globular: ...
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2 votes

What did I see streaking across the sky last night?

It could have been an Iridium Satellite. Their solar panels are at an angle such that the sun reflects off them causing them to look like a bright flash that crosses the sky for a few seconds. I use ...
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  • 106
2 votes

Can Jupiter's bands be made out using a 15x70 pair of binoculars?

I use a 20x80 binocular on a tripod and I cannot make out Jupiter's bands. I believe that a 15x70 binocular will not be adequate.
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  • 1,743
2 votes

Enhanced Star-Gazing with Special Glasses

Stereo Vision? Optically, you'll need something like a couple big Fisheye lenses mounted on a helmet. Looking straight through such optics yields horrible distortion, so you'd have to feed the lens' ...
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2 votes

Are there standard algorithms and procedures for creating unique sky maps based on latitude/longitude/date/time?

If you want to use the user's co-ordinates (longitude and latitude) to calculate the topocentric co-ordinates of an object to a not very high accuracy then you should be able to find a few software ...
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