|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
ASTRO: NGC 1999 and surroundings
Another cloud terminated image. I got some pretty good H alpha data but
when I went for color I got only one green frame -- with a bright satellite and one blue -- also with that same satellite and another satellite (geo-stationary I believe as it makes a directly east west path). I got no red data as the clouds nailed me so used the H alpha channel for that making for some odd blue stars as they hardly register in H alpha. With all the clouds of late I doubt I'll get more color data so going with this as it is now galaxy season. NGC 1999 is the blue white reflection nebula near the center that looks much like a keyhole -- to the heavens as some say. The "hole" is really a really shadowed area, not a hole at all. The red is part of the faint general H II cloud that covers much of the constellation of Orion. The two red "stars" below NGC 1999 are two Herbig Haro regions per Richard Crisp's web page showing a wide field view using his narrow band approach. http://www.narrowbandimaging.com/ngc...ap180_6303.htm 14" LX200R@F/10, Ha/red=3X30', GB=1x5' all binned 2x2, STL-11000MX, Paramount ME Rick -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
#2
|
|||
|
|||
ASTRO: NGC 1999 and surroundings
now there's one that I actually have shot before Rick: both in Halpha and
also in my weird "hubble palette" using [SII]/Ha and [OIII] here are my versions: halpha only http://www.narrowbandimaging.com/ngc...03_ha_page.htm tricolor emission line: http://www.narrowbandimaging.com/ngc..._6303_page.htm it looks pretty disgusting in emission line filters I think This is my earlier attempt solely directed toward the nearby "waterfall" (HH222 and HH34) http://www.narrowbandimaging.com/her...ro_34_page.htm and a bit later attempt using the Stinger 450 Cass, but with lousy seeing and poor signal strength (not enough exposure time on that puppy) http://www.narrowbandimaging.com/hh2..._csha_page.htm as you can tell I really like that region and someday I hope to actually take a good image in that area :-) "Rick Johnson" wrote in message ... Another cloud terminated image. I got some pretty good H alpha data but when I went for color I got only one green frame -- with a bright satellite and one blue -- also with that same satellite and another satellite (geo-stationary I believe as it makes a directly east west path). I got no red data as the clouds nailed me so used the H alpha channel for that making for some odd blue stars as they hardly register in H alpha. With all the clouds of late I doubt I'll get more color data so going with this as it is now galaxy season. NGC 1999 is the blue white reflection nebula near the center that looks much like a keyhole -- to the heavens as some say. The "hole" is really a really shadowed area, not a hole at all. The red is part of the faint general H II cloud that covers much of the constellation of Orion. The two red "stars" below NGC 1999 are two Herbig Haro regions per Richard Crisp's web page showing a wide field view using his narrow band approach. http://www.narrowbandimaging.com/ngc...ap180_6303.htm 14" LX200R@F/10, Ha/red=3X30', GB=1x5' all binned 2x2, STL-11000MX, Paramount ME Rick -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
#3
|
|||
|
|||
ASTRO: NGC 1999 and surroundings
Very nice deep shot. I imaged NGC 1999 twice, but never even noticed that
there is an emission part around the reflection nebula. I'd probably need a Halpha filter to record the emission part as it seems to be quite faint. Stefan "Rick Johnson" schrieb im Newsbeitrag ... Another cloud terminated image. I got some pretty good H alpha data but when I went for color I got only one green frame -- with a bright satellite and one blue -- also with that same satellite and another satellite (geo-stationary I believe as it makes a directly east west path). I got no red data as the clouds nailed me so used the H alpha channel for that making for some odd blue stars as they hardly register in H alpha. With all the clouds of late I doubt I'll get more color data so going with this as it is now galaxy season. NGC 1999 is the blue white reflection nebula near the center that looks much like a keyhole -- to the heavens as some say. The "hole" is really a really shadowed area, not a hole at all. The red is part of the faint general H II cloud that covers much of the constellation of Orion. The two red "stars" below NGC 1999 are two Herbig Haro regions per Richard Crisp's web page showing a wide field view using his narrow band approach. http://www.narrowbandimaging.com/ngc...ap180_6303.htm 14" LX200R@F/10, Ha/red=3X30', GB=1x5' all binned 2x2, STL-11000MX, Paramount ME Rick -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Feeding the Monster: New VLT Images Reveal the Surroundings of aSuper-massive Black Hole (Forwarded) | Andrew Yee | Astronomy Misc | 0 | October 18th 05 03:37 PM |
Feeding the Monster: New VLT Images Reveal the Surroundings of aSuper-massive Black Hole (Forwarded) | Andrew Yee | News | 0 | October 18th 05 03:10 PM |
"Space: 1999" Eagle: Realistic? | Chuck Stewart | Technology | 0 | July 12th 04 07:20 AM |
Gravitational Interaction Between Two Regions Less Dense Than Surroundings | Fleetie | UK Astronomy | 6 | August 7th 03 07:09 AM |