• Welcome to Orpington Astronomical Society.
 

News:

New version SMF 2.1.4 installed. You may need to clear cookies and login again...

Main Menu

Another one from Petts Wood - vdB24, LDN1442 in Perseus - LRGB

Started by Roberto, Mar 14, 2023, 09:55:44

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Roberto

Held up for as long as I could before this target moved behind trees (for me) in early March.  With the weather we are having that was it for this year so here's the result:  https://www.astrobin.com/jujtmz/D/  Usual tandem refractor setup acquiring L and OSC.

vdB24, LDN1442 in Perseus - LRGB

Dates:  14 Feb 2023 ·  19 Feb 2023 ·  20 Feb 2023 ·  23 Feb 2023 ·  24 Feb 2023 ·  25 Feb 2023 ·  10 Mar 2023
Frames: OSC - 79×300″(6h 35′) bin 1×1
L - IDAS LPS-P2 50 mm: 32×600″(5h 20′) bin 1×1
Integration: 11h 55′
Avg. Moon age: 11.88 days
Avg. Moon phase: 28.72%

Extract of physical description from http://annesastronomynews.com/photo-gallery-ii/nebulae-clouds/vdb-24/:
"vdB 24 is a faint, blue reflection nebula that lies roughly 1,140 light-years away in the constellation of Perseus, in the same galactic region as the California Nebula ( Sh2-220). The nebula is listed as number 24 in the van den Bergh Reflection Nebulae Catalog which contains 159 reflection nebulae. The catalog was originally published in 1966 by Sidney van den Bergh.

Reflection nebulae are dust clouds which are illuminated by the reflected light of nearby stars. In this case, the reflecion nebula is illuminated by the variable star XY Persei (XY Per for short) which is the bright star just below vdB 24, near the center of the image.

XY Persei is actually a binary star. Its main component is, with an age of approximately 2.5 million years, extremely young and still shrouded in the cloud of gas and dust in which it was born. It has a temperature of 9750 K, a mass of 2.8 times that of the Sun, a brightness of 86 times the solar luminosity, and a rotation speed of at least 200 kilometers per second.

vdB 24 is embedded in a larger dark nebula called LDN 1442, which can be seen as the brownish gas surrounding it. LDB 1442 derives from number 1442 in Beverly T. Lynds' "Catalog of Dark Nebulae" that was published in 1962."

Roberto



Carole

Not heard of this one before Robert.  But as usual it is an excellent result, especially the full sized version is splendid.

Carole

MarkS


garrick