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Mike JW

SHK 90 and two Quasars, SHK 87 - in lynx

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SHK 90 (circled) has 12 members. The brightest is mag 17.5 (not the star in the circle). Just outside the circle is UGC 4214 (mag 15.3 and 480 mly away). I used UGC 4214 as the GOTO reference so this group was easy to find.

The two Quasars are labelled - 5504 is 8.15 billion ly away. 5509 is a mere 1.5 billion ly away.

There are other galaxies in the shot.

Using the 15" Dob means I get a result very quickly - in about 6 x 5 sec stack or quicker. This shot I used a stack of 7 seconds.

 

545927539_SHK90andtwoQUASARS.png.ea2b9790557c6140117483e42f4d36c7.png

 

SHK 87 has 7 members, the brightest is mag 17.  This time I used the double star as the reference point. I looked at this double visually before popping in the camera - a lovely sight - mag 8 and mag 10 separated by 1.7".

Mike

Shk.87_2020.1.28_18_42_25.png.7d3ba67ce34c813f9682f6f32cb48372.png

 

 

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Great stuff! SHK 92 is just outside the field of view (closer then SHK 87). Times like this one needs a larger sensor...

Martin

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14 hours ago, Mike JW said:

 

...Using the 15" Dob means I get a result very quickly - in about 6 x 5 sec stack or quicker. This shot I used a stack of 7 seconds...

 

Very interesting shots, what was your camera?

Best

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32 minutes ago, Martin Meredith said:

Great stuff! SHK 92 is just outside the field of view (closer then SHK 87). Times like this one needs a larger sensor...

Martin

Don't tempt me - I have thought about it.....

 

18 minutes ago, beka said:

Very interesting shots, what was your camera?

I use a Starlight Express - ultrastar guide camera. Other folk (Martin, Bill) use the Lodestar v2 guide camera - both work very well for EAAV.

Mike

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