Hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  16 Tau  ·  17 Tau  ·  18 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  ·  Barnard's Merope Nebula  ·  Celaeno  ·  Electra  ·  IC 349  ·  M 45  ·  Maia  ·  Maia Nebula  ·  Merope  ·  Merope Nebula  ·  NGC 1432  ·  NGC 1435  ·  Pleiades  ·  Pleione  ·  Sterope II  ·  And 10 more.
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            Joey Troy
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Getting plate-solving status, please wait...


            Joey Troy
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Technical card

Imaging telescopes or lenses: William Optics Redcat 51

Imaging cameras: Nikon D5500

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: PixInsight

Accessory: ZWO ASiair pro  ·  ZWO EAF

Dates:Dec. 4, 2020Dec. 5, 2020Dec. 10, 2020Dec. 19, 2020Jan. 4, 2021

41x180" (2h 3') ISO200
17x300" (1h 25') ISO200

Integration: 3h 28'

Darks: 20

Flats: 60

Bias: 60

Avg. Moon age: 17.64 days

Avg. Moon phase: 56.07%

Bortle Dark-Sky Scale: 4.00

RA center: 03h47m30s.66

DEC center: +24°1001.5

Pixel scale: 3.271 arcsec/pixel

Orientation: -83.875 degrees

Field radius: 1.286 degrees

More info:Open 

Resolution: 2000x2000

Locations: Backyard, Belen, NM, United States

Data source: Backyard


The Pleiades (/ˈpliːədiːz/,[7] /ˈplaɪədiːz/), also known as the Seven Sisters and Messier 45, is an open star cluster containing middle-aged, hot B-type stars in the north-west of the constellation Taurus. It is among the star clusters nearest to Earth, it is the nearest Messier object to 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 their formation, 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.

Together with the open star cluster of the Hyades, the Pleiades form the Golden Gate of the Ecliptic.


Sky plot

Sky plot




            Joey Troy