Search found 59 matches
- Mon Jul 12, 2021 1:44 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: M27: The Dumbbell Nebula (2021 Jul 12)
- Replies: 35
- Views: 8254
Re: APOD: M27: The Dumbbell Nebula (2021 Jul 12)
Here are two other pictures which show more H-alpha details. In the first one, H-alpha is mapped to orange and [OIII] is mapped to bluish cyan, in the second one H-alpha is mapped to green, [OIII] is mapped to red and [SII] is mapped to blue. http://www.simg.de/nebulae1/vul-01-ho2-400.jpg http://www...
- Sun Jul 11, 2021 8:23 pm
- Forum: The Observation Deck: Latest Sky Photography
- Topic: Submissions: 2021 July
- Replies: 113
- Views: 157951
Re: Submissions: 2021 July
NGC2403 and NGC2404 in H-alpha and continuum light NGC2403 is a spiral galaxy in Camelopardalis. NGC2404 is one of many large HII region inside the galaxy. The image is calculated with and without H-alpha information. By toggling between the two variants the correlation between HII gas clouds and b...
- Thu Jul 08, 2021 10:28 am
- Forum: The Observation Deck: Latest Sky Photography
- Topic: Submissions: 2021 July
- Replies: 113
- Views: 157951
Re: Submissions: 2021 July
M27 M27 (also known as Dumbbell Nebula) is a planetary nebula in constellation Vulpecula with an apparent diameter of about 16 arcmin. Most sources only state about 7 arcmin. But this is only the bright inner structure. This pictures also show the faint outer shell. Click on the image for detailed ...
- Sat Jul 03, 2021 8:28 pm
- Forum: The Observation Deck: Latest Sky Photography
- Topic: Submissions: 2021 July
- Replies: 113
- Views: 157951
Submissions: 2021 July
SH2-86 SH2-86 is an emission nebula in constellation Vulpecula with an apparent diameter of about 40 arcmin. The nebula is not very bright but contains some interesting pillar-structures and Bok globules. Click on the image for detailed information and full resolution pictures. http://www.simg.de/n...
- Thu Jun 24, 2021 5:13 pm
- Forum: The Observation Deck: Latest Sky Photography
- Topic: Submissions: 2021 June
- Replies: 104
- Views: 187722
Re: Submissions: 2021 June
Milky Way from Taurus to Perseus A 25°x35° wide-field view of Milky Way in the constellations Taurus, Auriga and Perseus is presented in different color composites. Many famous nebulae like Spaghetti Nebulae, IC 405 and IC 410 can be seen near the galactic plane. The region south of it is full of M...
- Wed Jun 16, 2021 5:40 pm
- Forum: The Observation Deck: Latest Sky Photography
- Topic: Submissions: 2021 June
- Replies: 104
- Views: 187722
Re: Submissions: 2021 June
M33 to SH2-126 A 21°x42° view which covers most of the constellations Andromeda and Lacerta is presented. The center of the photographed region lies about 20° south of the galactic plane and is rich of high galactic latitude nebulae. Most famous objects are M33 (Triangulum galaxy), M31 (Andromeda G...
- Tue Jun 08, 2021 10:21 pm
- Forum: The Observation Deck: Latest Sky Photography
- Topic: Submissions: 2021 June
- Replies: 104
- Views: 187722
Re: Submissions: 2021 June
Milky Way from Monoceros to Gemini A 21°x42° view of the of the Milky Way in constellation Monoceros, Orion and Gemini was calculated with a resolution of 10 arcsec/pixel. Full views below are down scaled by factor 19, larger version can be loaded by clicking on the image, full resolution pictures ...
- Sun May 23, 2021 6:21 pm
- Forum: The Observation Deck: Latest Sky Photography
- Topic: Submissions: 2021 May
- Replies: 82
- Views: 110839
Re: Submissions: 2021 May
Below are 3 selected views from the Orion constellation. A 25° x 34° field was calculated from a larger set of data. Results at a resolution of up to 10 arcsec/pixel are presented at http://www.simg.de/nebulae3/ori-06.html In the first two views H-alpha (including red continuum) is mapped to red, bl...
- Fri Jul 17, 2020 9:13 am
- Forum: The Observation Deck: Latest Sky Photography
- Topic: Submissions: 2020 July
- Replies: 243
- Views: 307550
Re: Submissions: 2020 July
Colors of the gas tail of comet Comet C/2020 F3 (NEOWISE) In first image a point in the gas tail had been used for white balance. The colors in the gas tail come from different elements, but not from Sodium because an Light pollution filter had been used which blocks wavelength between 540nm and 64...