ASTRO: PK 24+5.1/Minkowski 4-9 in a beautiful field with dark nebula

This image takes me back into the depths of the Milky Way for both a
planetary nebula and some nice dark nebulae. Not easy to find such a
combination for my 0.2 square degree field of view.

PK 24+5.1/Minkowski 4-9 is a planetary nebula in Serpens Cauda on the
edge of LDN 472. The dark nebula at the top of the frame is DOBASHI
0972. LDN 469 extends along the right edge of my image at the lower
right corner. The dark cloud above it is DOBASHI 0962. Though usually
LDN 472 is applied to it and DOBASHI 0972 while LDN 469's designation
usually includes DOBASHI 0962 though their given sizes in the LDN
catalog are insufficient for this as best as I can determine.

The distance to the planetary is rather vague as is the case with most
planetaries. I found a rather wide range of values from 1.2 to 2.83 kpc
(3,900 to 9,230 light-years). The most recent value seems to be 1.72
kpc (5,610 light-years). It would appear the dark nebulae are behind
the planetary but I found nothing on their distances.

By the way, the L in LDN stands for Lynds (Beverly T. Lynds) who
compiled a catalog of dark (LDN) and another of bright (LBN) nebulae in
the early 60's by scouring the original Palomar Observatory Sky Survey
plates taken with the observatories 48" Schmidt camera.

14" LX200R @ f/10, L=4x10' RGB=2x10', STL-11000XM, Paramount ME

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

Mighty image Rick.
The small PN is a real beauty.

Stefan


"Rick Johnson" schrieb im Newsbeitrag
...

This image takes me back into the depths of the Milky Way for both a
planetary nebula and some nice dark nebulae. Not easy to find such a
combination for my 0.2 square degree field of view.

PK 24+5.1/Minkowski 4-9 is a planetary nebula in Serpens Cauda on the
edge of LDN 472. The dark nebula at the top of the frame is DOBASHI
0972. LDN 469 extends along the right edge of my image at the lower
right corner. The dark cloud above it is DOBASHI 0962. Though usually
LDN 472 is applied to it and DOBASHI 0972 while LDN 469's designation
usually includes DOBASHI 0962 though their given sizes in the LDN
catalog are insufficient for this as best as I can determine.

The distance to the planetary is rather vague as is the case with most
planetaries. I found a rather wide range of values from 1.2 to 2.83 kpc
(3,900 to 9,230 light-years). The most recent value seems to be 1.72
kpc (5,610 light-years). It would appear the dark nebulae are behind
the planetary but I found nothing on their distances.

By the way, the L in LDN stands for Lynds (Beverly T. Lynds) who
compiled a catalog of dark (LDN) and another of bright (LBN) nebulae in
the early 60's by scouring the original Palomar Observatory Sky Survey
plates taken with the observatories 48" Schmidt camera.

14" LX200R @ f/10, L=4x10' RGB=2x10', STL-11000XM, Paramount ME

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