All Questions
8
questions
4
votes
1
answer
58
views
How do I use StarData with HR number as input?
In Mathematica 13.1, it is simple to look up star data using the star name as input, like this:
StarData["Capella","EffectiveTemperature"]
...
- 43
4
votes
3
answers
433
views
Calculating upper culmination of the Moon
I’m completely confused by the new astronomical data system in Mathematica. For every day in some interval, I want to calculate
{azimuth, altitude} of the Moon in ...
- 1,849
1
vote
1
answer
319
views
list of dates for vernal equinox
I'm trying to get a list of dates and times of the vernal equinox for the last 30 years (or some other time interval). I'm flailing about and really have gotten nowhere. When I've tried typing ...
- 3,726
4
votes
1
answer
142
views
How To Improve Mathematica StarData Performance When Compared To AstronomicalData
My tests of using AstronomicalData versus StarData show that StarData requests are 15 times ...
- 355
3
votes
1
answer
170
views
Working with StarData Versus AstronomicalData
Using AstronomicalData I could easily do something like:
...
- 355
5
votes
2
answers
576
views
How to find the Andromeda Galaxy
I would like to find the Andromeda Galaxy ($M31$) with the unaided eye. One way is to use the following image and graphic
but I can’t find it just by looking in a dark sky. It is hard to detect ...
- 8,988
3
votes
1
answer
203
views
Convert star name into entity value
I have a list of star names:
stan = Select[#, Last[#] < Quantity[153.5, "LightYears"] &] &@
StarData[StarData[], {"Name", "DistanceFromEarth"}]
...
- 31
7
votes
1
answer
349
views
How to get star coordinates for a given time
Fixed in 10.3.1
In the documentation of StarData, there is an example that shows how to get the altitude of Sirius at a given time (in the horizontal coordinate ...
- 7,827