Jump to content
  • Join the online East Midlands astronomy club today!

    With active forums, two dark sites and a knowledgeable membership, East Midlands Stargazers has something for everyone.

Recommended Posts

I've been observing in Leo a bit of late. Gamma Leonis is one of my favourite doubles. I've been predominantly using small refractors (80mm, 72mm & 60mm).

 

gHL37hDh.jpg

 

At between 40x and 60x I can often see a blue point of light just above Regulus. I wondered if this was a binary companion but it's a distinct possibility I'm seeing the nucleus of the elliptical galaxy Leo I.

 

vzI7qRPl.jpg

 

I'm just a bit surprised I could see this with a 60mm doublet. Although at + 10.43 it shouldn't be difficult. 

 

hCiZThmh.jpg

 

I think I've seen this before but I assumed it was a faint star.

 

n2tr05Sl.jpg

 

I've seen it with my 60 EDF and my modified ST80.

 

kz9EL60l.jpg

 

Screenshots from SkySafari 6 Pro.

Link to post
Share on other sites

I would expect an extended object of mag 10.43 to be beyond the range of a 60mm telescope. I have gone down to 10.1 with my 127mm Mak under ideal conditions,

Link to post
Share on other sites

As a rule of thumb, I find that if  can see or photograph a star at mag 10, I can reach a galaxy or globular cluster at mag 8.

Link to post
Share on other sites
24 minutes ago, Sunny Phil said:

I would expect an extended object of mag 10.43 to be beyond the range of a 60mm telescope. I have gone down to 10.1 with my 127mm Mak under ideal conditions,

 

Yeah, that's what made me sceptical too. According to Altair the 60mm EDF has a limiting magnitude of 11.59. The object was a blue point of light, so it's possibly just a dull blue star I'm seeing. It didn't look exactly like a star though and was oddly translucent, for want of a better word. I was just curious if I was seeing the nucleus. I can see NGC 404 with the 60mm doublet. And that's a lenticular galaxy (11.2 mag) around 10 million light years away. 

Link to post
Share on other sites
36 minutes ago, Sunny Phil said:

As a rule of thumb, I find that if  can see or photograph a star at mag 10, I can reach a galaxy or globular cluster at mag 8.

 

I may have to use a bigger Altair doublet lol.

 

RAVI9yJl.jpg

Link to post
Share on other sites

I had a look early this morning with my ST80. I think that the fact I'd rotated the diagonal confused me in earlier sessions and I wasn't looking above Regulus. I couldn't see the object. Maybe it was a Zeta Reticulan scout ship? lol

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.