Search found 1491 matches

by stella
Thu Apr 22, 2021 7:36 am
Forum: Observing
Topic: Lyrid Meteor Shower
Replies: 8
Views: 55

Re: Lyrid Meteor Shower

Well done those are real errors. The one that I was thinking of was that the two meteors
shown in the accompanying picture are NOT Lyrids, since they are not radiating from Lyra.
Lyra lies in the right hand part of the image, with Vega the most obvious feature.
by stella
Wed Apr 21, 2021 5:47 pm
Forum: Observing
Topic: Lyrid Meteor Shower
Replies: 8
Views: 55

Re: Lyrid Meteor Shower

by stella
Wed Apr 14, 2021 8:00 am
Forum: General chat
Topic: Asteroid Apophis Flyby
Replies: 10
Views: 533

Re: Asteroid Apophis Flyby

Just 8 years to go.
by stella
Wed Apr 07, 2021 12:02 pm
Forum: Observing
Topic: Mu Cephei
Replies: 10
Views: 205

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: 599

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: 599

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: 431

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: 431

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: 405

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: 281

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: 281

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: 248

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: 248

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: 1111

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."