The Image Index is a system based on likes received on images, that incentivizes the most active and liked members of the community. Learn more.
The Contribution Index (beta) is system to reward informative, constructive, and valuable commentary on AstroBin. Learn more.
Imaging telescopes or lenses: William Optics Redcat 51
Imaging cameras: ZWO ASI533MC Pro
Mounts: Sky-Watcher EQM 35 Pro
Guiding telescopes or lenses: ZWO 30mm f/4 Mini Guide Scope
Guiding cameras: ZWO ASI 120 Mini Mono
Software: Pleiades AstroPhoto Pixinsight · GIMP 2.10.22
Accessory: ZWO EAF Electronic Auto Focuser · ZWO ASI Air Pro
Dates:Feb. 21, 2021 , Feb. 24, 2021
Frames:Optolong L-eXtreme 2": 16x600" (gain: 101.00) -10C
Integration: 2.7 hours
Darks: ~10
Flats: ~10
Bias: ~10
Avg. Moon age: 10.36 days
Avg. Moon phase: 78.22%
Bortle Dark-Sky Scale: 3.00
Astrometry.net job: 4255231
RA center: 0h 53' 5"
DEC center: +56° 39' 45"
Pixel scale: 1.570 arcsec/pixel
Orientation: -29.419 degrees
Field radius: 1.163 degrees
Resolution: 4075x3437
Locations: Backyard, Belen, NM, United States
Data source: Backyard
NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way's Perseus Spiral Arm. This 20×30 arcmin sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star, B 1. It collectively forms Sh2-184, spanning over a larger area of 40 arcmin.[4] A recent distance from radio parallaxes of water masers at 22 GHz made during 2014 is estimated it lies 2.82±0.20 kpc. (9200 ly.) from us. Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character.
Edward Emerson Barnard discovered the nebula in August 1883, describing it as "a large faint nebula, very diffuse." Multiple star 'B 1' or β 1 was later discovered by S. W. Burnham, whose bright component is identified as the highly luminous O6 spectral class star, HD 5005 or HIP 4121. It consists of an 8th-magnitude primary with four companions at distances between 1.4 and 15.7 arcsec. There has been no appreciable change in this quintuple system since the first measures were made in 1875.
您没有新通知。 |
This page or operation is not available at the moment, because AstroBin is in READ ONLY mode. For more information, please check out our Twitter feed: https://twitter.com/AstroBin_com
This feature is only offered at higher membership levels.
Would you be interested in upgrading? AstroBin is a very small business and your support would mean a lot!
If this user has been harassing you, and you shadow-ban them, all their activities on your content will be invisible to everyone except themselves.
They will not know that they have been shadow-banned, and the goal is that eventually they will get bored while having caused no harm, since nobody saw what they posted.
You will remove your shadow-ban on this user, and their comments, messages, etc, will appear again on your content.
Please note: You are on a Free account, and when you delete an image, your upload counter does not decrease (unless the image is deleted within 24 hours of uploading it). The Free account is not a way to keep your most recent or best 10 images on AstroBin, but a trial period for you to decide whether or not a paid subscription is worth it. For more information, please click here.
The image will be permanently deleted and cannot be recovered. All its revisions will be deleted too. Are you sure?
You will delete all other revisions (if any), and the originally uploaded image, leaving the current revision as the final and only version of this image.
You will delete all revisions, leaving the originally uploaded image as the final and only version of this image.
Such limitation improves the website as a whole by discouraging people from creating fake accounts to like their own content. Thank you for understanding!
Currently, your Image Index is .
To learn more about the Image Index, please visit the FAQ page. Thanks!
Comments