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LBN603 and LBN438 - first light with the double RASA rig


gorann

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I just posted these images on the equipment post I started

but thought they may also have a place on the Deep Space Imaging page with a bit more info.

Cheers, Göran

About the first image. This is only from one of the RASAs since the laptop for the camera on the other one apparently decided to update Windows after grabbing three subs. So 83 x 2 min with a RASA8 and ASI2600MC (gain 100). LBN (Lynds Braight Nebula Catalogue) 603 is located in Cassiopeia and appears to be rarely imaged.

1787655159_20210902-3LBN603RASAPS43smallSign.thumb.jpg.0b71d8e34fdd219a7edd488fe311aeb3.jpg

 

Abouth the Second Image: Now all laptops in airplane mode to stop updates. This is 2+2=4 hours (RASA8+ASI2600MC gain 100, 80x3 min). The prominent central structure is LBN438, which is catalogued in Lynds' Catalogue of Bright Nebula, but it is quite dim and demands rather deep data and stretch. Its magnitude is 16 and the surface brightness only 23. It is 30 arc-minutes long.There are more LBNs in the image including 435 and 440 and quite a few galaxies from the PGC and UGC cataloges. The nebulosity is part of the Lacerta Molecular Cloud. The annotated image shows a myriad of galaxies.
I could only find relatively few images of LBN438 on Astrobin and none as wide field as this one. Gary Imm has as usual done his research and written a very interesting description of LBN 438 that I can recommend to those that want to know more: https://www.astrobin.com/8iq7ay/

2053391612_20210903-4LBN438RASA12PS30smallSign.thumb.jpg.0a759391d6123688a0e83f47d6255465.jpg

_20210903_4_LBN438_RASA1_2_PS30_Annes_reduce_star_unsharp_mask_on_the_right__Annotated.thumb.jpg.07d514da09b9ee9582981dfd5017fa62.jpg

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