NGC 5395 & NGC 5394 (Heron Galaxy)
I thought I'd have a go at some deep field imaging. A couple of my favorites, NGC 5395 (RA 13:59:1.0 Dec 37:22:47.0) & NGC 5394 (RA 13:58:56.5 Dec 37:24:32.9).
These are two interacting galaxies that collided some millions of years ago. The morphology suggests that NGC 5394 (the smaller galaxy) passed, cart wheeling through NGC 5395 as opposed to a grazing encounter.
Apparent magnitudes are 13.6 and 12.7 respectively. NGC 5395 has several dark dust lanes, and knotty spiral arms. The companion galaxy NGC 5394 has prominent inner and outer spiral arms. The inner arms appear as a nearly complete central circle. NGC 5395 is roughly 184 million light years distant, and is 155,000 light years in size.
A supernova, SN2000CR, was detected in NGC 5395 in 2000, at magnitude 17. This has dimmed since then, but is still just visible in the dark lane between the outer two spiral arms, at between 11.0 oclock and 12 oclock.
A galaxy is just visible in the image, to the right of NGC 5394 at about 3 oclock. This is an 18 magnitude distant elliptical known as PGC 211092 (RA 13:58:26.2 Dec 37:27:09.0) at 0.652 Gyr. Visible to the left of NGC 5395 at about 9 o'clock is 2SMAXSX J13590194+325195 (RA 13:59:1.9 Dec 37:25:19.0) a spiral galaxy 0.660 Gyr away. Also visible to the top of the picture at around 11 o'clock is IC 4356 (RA 13:58:45.1 Dec 37:29:26.0) a compact elliptical galaxy 1.197 Gyr distant.
This was taken using GRAS 7 in Israel, 15-Mar-2008 20:22:14 - 21:58:03 UTC
10 x Luminance 120 sec subs bin 1
8 x red 120 sec subs bin 2
8 x green 120 sec subs bin 2
8x blue 120 sec subs bin 2
There was a substantial amount of vignetting in the subs, which although I managed to reduce, has had an effect on the image quality.
Processed with MaximDL and Photoshop CS2
These are two interacting galaxies that collided some millions of years ago. The morphology suggests that NGC 5394 (the smaller galaxy) passed, cart wheeling through NGC 5395 as opposed to a grazing encounter.
Apparent magnitudes are 13.6 and 12.7 respectively. NGC 5395 has several dark dust lanes, and knotty spiral arms. The companion galaxy NGC 5394 has prominent inner and outer spiral arms. The inner arms appear as a nearly complete central circle. NGC 5395 is roughly 184 million light years distant, and is 155,000 light years in size.
A supernova, SN2000CR, was detected in NGC 5395 in 2000, at magnitude 17. This has dimmed since then, but is still just visible in the dark lane between the outer two spiral arms, at between 11.0 oclock and 12 oclock.
A galaxy is just visible in the image, to the right of NGC 5394 at about 3 oclock. This is an 18 magnitude distant elliptical known as PGC 211092 (RA 13:58:26.2 Dec 37:27:09.0) at 0.652 Gyr. Visible to the left of NGC 5395 at about 9 o'clock is 2SMAXSX J13590194+325195 (RA 13:59:1.9 Dec 37:25:19.0) a spiral galaxy 0.660 Gyr away. Also visible to the top of the picture at around 11 o'clock is IC 4356 (RA 13:58:45.1 Dec 37:29:26.0) a compact elliptical galaxy 1.197 Gyr distant.
This was taken using GRAS 7 in Israel, 15-Mar-2008 20:22:14 - 21:58:03 UTC
10 x Luminance 120 sec subs bin 1
8 x red 120 sec subs bin 2
8 x green 120 sec subs bin 2
8x blue 120 sec subs bin 2
There was a substantial amount of vignetting in the subs, which although I managed to reduce, has had an effect on the image quality.
Processed with MaximDL and Photoshop CS2
Attachments:
NGC5394_NGC5395_LLRGB.jpg