Hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  16 Tau  ·  17 Tau  ·  19 q Tau  ·  20 Tau  ·  21 Tau  ·  22 Tau  ·  23 Tau  ·  24 Tau  ·  25 eta Tau  ·  26 Tau  ·  27 Tau  ·  28 Tau  ·  Alcyone  ·  Asterope  ·  Atlas  ·  Celaeno  ·  Electra  ·  IC349  ·  M45  ·  Maia  ·  Merope  ·  Merope nebula  ·  NGC1435  ·  Pleione  ·  Sterope II  ·  Taygeta  ·  The star Celaeno (16Tau)  ·  The star Electra (17Tau)  ·  The star Merope (23Tau)  ·  The star Sterope I (21Tau)  ·  And 2 more.
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The Pleiades - M45, 


            Thomas Richter
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The Pleiades - M45

Technical card

Imaging telescopes or lenses: Skywatcher Esprit 80 ED Triplet Super Apo

Imaging cameras: ZWO ASI 183 MM PRO

Mounts: SkyWatcher NEQ6 Pro Goto

Guiding telescopes or lenses: Skywatcher Esprit 80 ED Triplet Super Apo

Guiding cameras: Astrolumina Alccd5L-IIc

Focal reducers: Skywatcher Field flattener for Esprit 80mm

Software: PhotoShop CS5  ·  PHD2 Guiding  ·  FitsWork 4  ·  DeepSky Stacker Deep Sky Stacker 3.3.4  ·  Seqence Generator Pro

Filters: Baader R 1.25'' CCD Filter  ·  Baader B 1.25'' CCD Filter  ·  Baader G 1.25'' CCD Filter  ·  Baader L 1.25'' Filter

Accessory: TSOptics TS Off Axis Guider - 9mm

Dates:Jan. 20, 2020

Baader B 1.25'' CCD Filter: 11x300" (gain: 53.00) -20C bin 1x1
Baader G 1.25'' CCD Filter: 11x300" (gain: 53.00) -20C bin 1x1
Baader L 1.25'' Filter: 23x300" (gain: 53.00) -20C bin 1x1
Baader R 1.25'' CCD Filter: 11x300" (gain: 53.00) -20C bin 1x1

Integration: 4.7 hours

Darks: ~37

Flats: ~27

Flat darks: ~100

Avg. Moon age: 25.21 days

Avg. Moon phase: 19.65%

Temperature: -5.00

Astrometry.net job: 3200361

RA center: 3h 46' 32"

DEC center: +24° 7' 4"

Pixel scale: 1.201 arcsec/pixel

Orientation: -2.344 degrees

Field radius: 1.081 degrees

Resolution: 5396x3592

Locations: Linden, Linden, Bayern, Germany

Data source: Traveller


Object description (wikipedia.org):

The Pleiades, also known as the Seven Sisters and Messier 45, are an open star cluster containing middle-aged, hot B-type stars located in the constellation of Taurus. It is among the star clusters nearest Earth and is the cluster most obvious to the naked eye in the night sky.

The cluster is dominated by hot blue and luminous stars that have formed within the last 100 million years. Reflection nebulae around the brightest stars were once thought to be left over material from the formation of the cluster, but are now considered likely to be an unrelated dust cloud in the interstellar medium through which the stars are currently passing.

Computer simulations have shown that the Pleiades were probably formed from a compact configuration that resembled the Orion Nebula. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.



  • The Pleiades - M45, 


            Thomas Richter
  • Final
    The Pleiades - M45, 


            Thomas Richter

Sky plot

Sky plot


The Pleiades - M45, 


            Thomas Richter