Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  IC 5134  ·  NGC 7129  ·  NGC 7142
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Reflexnebula NGC 7129 & Open Cluster NGC 7142, 



    
        

            Big_Dipper
Reflexnebula NGC 7129 & Open Cluster NGC 7142
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Reflexnebula NGC 7129 & Open Cluster NGC 7142

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Reflexnebula NGC 7129 & Open Cluster NGC 7142, 



    
        

            Big_Dipper
Reflexnebula NGC 7129 & Open Cluster NGC 7142
Powered byPixInsight

Reflexnebula NGC 7129 & Open Cluster NGC 7142

Technical card

Imaging telescopes or lenses: Orion Optics UK CT10

Imaging cameras: Atik 4000

Mounts: Skywatcher AZ EQ6 GT

Guiding telescopes or lenses: Omegon Modul Finder 50/230

Guiding cameras: Lacerta M-Gen

Focal reducers: Tele Vue Parracor 1.15

Software: Guide 9.0  ·  Artemis Capture  ·  Pixinsight 1.8

Filters: Astronomik LRGB 1.25" Type IIc  ·  Astronomik O III 12nm 1.25"  ·  Astronomik H Alpha 12 nm 1.25"

Accessory: Atik EFW2-1 9x1.25"


Dates:June 2, 2021

Frames:
Astronomik H Alpha 12 nm 1.25": 38x360" (3h 48') -10C bin 1x1
Astronomik LRGB 1.25" Type IIc: 40x180" (2h) -10C bin 1x1
Astronomik O III 12nm 1.25": 38x360" (3h 48') -10C bin 1x1

Integration: 9h 36'

Darks: 20

Flats: 120

Bias: 150

Avg. Moon age: 22.33 days

Avg. Moon phase: 48.12%


Basic astrometry details

Astrometry.net job: 4591601

RA center: 21h 44' 6"

DEC center: +65° 59' 16"

Pixel scale: 1.149 arcsec/pixel

Orientation: 358.757 degrees

Field radius: 0.436 degrees


Resolution: 1945x1918

Locations: Homeobservatory , Roding, Bayern, Germany

Data source: Backyard

Description

NGC 7129 ist etwa 3500 Lj entfernt, und hat eine Ausdehnung von 10 Lichtjahren.

Ein offener Sternhaufen mit ca. 130 jungen Sternen ist in ihm eingebetet.

Das Alter ist unter einer Million Jahre.

NGC 7142 ist ein offener Sternhaufen in ca. 5500 Lichtjahren Entfernung. Mit 4,5 Milliarden

Jahren ist er einer der ältesten Offenen Sternhaufen. Ausdehnung 12 Bogenminuten.

Er enthält rund 100 Sterne, die hellsten davon mit 12,1 mag.

NGC 7129 is about 3500 light years away, and is 10 light years in extent. An open cluster with 130 young stars is embedded in it. The age is under a million years.

NGC 7142 is an open cluster about 5500 light years away. With 4.5 billion Years it is one of the oldest open clusters. Expansion 12 minutes of arc. It contains around 100 stars, the brightest of them with 12.1 mag.

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Reflexnebula NGC 7129 & Open Cluster NGC 7142, 



    
        

            Big_Dipper