ASTRO: SH2-87

SH2-87 is a faint emission nebula 3.6 degrees northwest of M27 in
Vulpecula. Distance estimates range 2100 parsecs +/- 200 parsecs.
That's 6,800 light-years +/- 650 light-years for the parsec challenged
out there. Another source put it at 7,500 light-years. It seems to
consist of a large very faint cloud with two bright condensations and a
moderately bright region east of the eastern bright region.
Unfortunately it was very low transparency the night I took this so I
missed most of the faint region that extends east and north of the two
bright regions. Also due to clouds of the 4 color frames per channel I
took only one of each color was usable and the blue channel was
especially poor so my color is very suspect, especially in the fainter
regions. I need to put this one back on the redo list for next summer.

The two condensations carry the very odd names of [CZY2003] S87E and
[CZY2003] S87W, left to right or I should say east to west as the last
letters indicate. These house Infrared star clusters. The eastern one
appears to be the result of a collision of two star clouds.

14" LX200R @ f/10 under poor conditions, L=4x10' RGB=1x10', STL-11000XM,
Paramount ME

Rick
--
Prefix is correct. Domain is arvig dot net

Rick,

there is some interesting small scale detail in this nebula.
Probably too faint for me.

Stefan


"Rick Johnson" schrieb im Newsbeitrag
...

SH2-87 is a faint emission nebula 3.6 degrees northwest of M27 in
Vulpecula. Distance estimates range 2100 parsecs +/- 200 parsecs.
That's 6,800 light-years +/- 650 light-years for the parsec challenged
out there. Another source put it at 7,500 light-years. It seems to
consist of a large very faint cloud with two bright condensations and a
moderately bright region east of the eastern bright region.
Unfortunately it was very low transparency the night I took this so I
missed most of the faint region that extends east and north of the two
bright regions. Also due to clouds of the 4 color frames per channel I
took only one of each color was usable and the blue channel was
especially poor so my color is very suspect, especially in the fainter
regions. I need to put this one back on the redo list for next summer.

The two condensations carry the very odd names of [CZY2003] S87E and
[CZY2003] S87W, left to right or I should say east to west as the last
letters indicate. These house Infrared star clusters. The eastern one
appears to be the result of a collision of two star clouds.

14" LX200R @ f/10 under poor conditions, L=4x10' RGB=1x10', STL-11000XM,
Paramount ME

Rick
--
Prefix is correct. Domain is arvig dot net

Transparency was horrible for this one. Add some Ha and it likely is
within your range. Don't be misled by my conditions.
Rick

On 1/22/2014 3:23 PM, Stefan Lilge wrote:
Rick,

there is some interesting small scale detail in this nebula.
Probably too faint for me.

Stefan


"Rick Johnson" schrieb im Newsbeitrag
...

SH2-87 is a faint emission nebula 3.6 degrees northwest of M27 in
Vulpecula. Distance estimates range 2100 parsecs +/- 200 parsecs.
That's 6,800 light-years +/- 650 light-years for the parsec challenged
out there. Another source put it at 7,500 light-years. It seems to
consist of a large very faint cloud with two bright condensations and a
moderately bright region east of the eastern bright region.
Unfortunately it was very low transparency the night I took this so I
missed most of the faint region that extends east and north of the two
bright regions. Also due to clouds of the 4 color frames per channel I
took only one of each color was usable and the blue channel was
especially poor so my color is very suspect, especially in the fainter
regions. I need to put this one back on the redo list for next summer.

The two condensations carry the very odd names of [CZY2003] S87E and
[CZY2003] S87W, left to right or I should say east to west as the last
letters indicate. These house Infrared star clusters. The eastern one
appears to be the result of a collision of two star clouds.

14" LX200R @ f/10 under poor conditions, L=4x10' RGB=1x10', STL-11000XM,
Paramount ME

Rick


--
Prefix is correct. Domain is arvig dot net