Search found 1488 matches

by stella
Wed Apr 07, 2021 12:02 pm
Forum: Observing
Topic: Mu Cephei
Replies: 10
Views: 87

Re: Mu Cephei

"Garnett Star"? Do you mean Warren Mitchell?
by stella
Sat Mar 13, 2021 6:04 pm
Forum: General chat
Topic: What is your favourite silly Unit in astronomy
Replies: 19
Views: 478

Re: What is your favourite silly Unit in astronomy

We all know that e=mcc

So here are the units:
m is the mass of a bag of sugar (I'm confusing 'mass' with 'weight')

c^2 is (distance/time)^2

or d^2/t^2

or possibly acre/square lunation

Should there be a constant k in there somewhere?
by stella
Fri Mar 12, 2021 4:02 pm
Forum: General chat
Topic: What is your favourite silly Unit in astronomy
Replies: 19
Views: 478

Re: What is your favourite silly Unit in astronomy

The speed of light in furlongs per fortnight.
by stella
Wed Mar 10, 2021 8:51 am
Forum: General chat
Topic: Silly Quiz
Replies: 10
Views: 369

Re: Silly Quiz

If you went out tonight, in which constellation would you find the following stars?:

gamma Aurigae

delta Pegasi

27 Aquarii

rho Aquilae

10 Ursae Majoris

34 Tauri
by stella
Tue Mar 09, 2021 11:37 am
Forum: General chat
Topic: Silly Quiz
Replies: 10
Views: 369

Re: Silly Quiz

Your question did not specify the epoch.
These two will be around 23°.5 from the celestial equator in just 13,000 years from now.
by stella
Wed Mar 03, 2021 9:42 am
Forum: Telescopes and instruments
Topic: Binocular catastrophes
Replies: 6
Views: 351

Re: Binocular catastrophes

That's John Hosty, who discovered Nova Sagittae in January 1977.
by stella
Tue Feb 23, 2021 8:27 pm
Forum: General chat
Topic: Distance of nearest stars
Replies: 6
Views: 230

Re: Distance of nearest stars

"Is this a super-relativistic effect in your case Stella? Bob" No, this is my age - the light seen from Alioth and Alcor left the star when I was born. (clue: use Stellarium, click on the star and it will give details including distance in light years). I assume they obtained the data from...
by stella
Tue Feb 23, 2021 8:32 am
Forum: General chat
Topic: Distance of nearest stars
Replies: 6
Views: 230

Re: Distance of nearest stars

Last year I was 'Alioth'; This year I'm "Alcor".
by stella
Thu Feb 18, 2021 11:36 am
Forum: Astrophysics
Topic: Chicxulub: asteroid or sungrazer comet?
Replies: 4
Views: 208

Re: Chicxulub: asteroid or sungrazer comet?

...and "Jill Tartar" should be "Jill Tarter", but that's my error!
by stella
Wed Feb 17, 2021 7:23 pm
Forum: Astrophysics
Topic: Chicxulub: asteroid or sungrazer comet?
Replies: 4
Views: 208

Re: Chicxulub: asteroid or sungrazer comet?

It's "Avi Loeb", famous for his verbal attack on Jill Tartar.
by stella
Tue Jan 19, 2021 2:41 pm
Forum: General chat
Topic: Another Beast from the East?
Replies: 18
Views: 1020

Re: Another Beast from the East?

"According to the Guardian there's a high possibility of another "beast from the East".

But it's approaching from the West!

So I prefer to think of it as a "Pest from the West."
by stella
Mon Jan 18, 2021 11:31 am
Forum: Observing
Topic: Looking for VESTA
Replies: 32
Views: 1183

Re: Looking for VESTA

These three are magnitude 6.6.
Their designations depend on which catalog you are accessing.
by stella
Thu Jan 14, 2021 9:24 am
Forum: Visual Satellite Observing
Topic: The UFO files
Replies: 8
Views: 612

Re: The UFO files

That should be "Aerial phenomena" not "Ariel phenomena". The latter is an entirely different kettle of fish.
by stella
Fri Jan 01, 2021 12:07 pm
Forum: Observing
Topic: Observing High-lights of MMXX
Replies: 10
Views: 286

Re: Observing High-lights of MMXX

Definitely a highlight. In fact a 530km (330 miles) high light.