Pleiades

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The nine brightest stars of the Pleiades are named for the Seven Sisters of Greek mythologySteropeMeropeElectraMaiaTaygetaCelaeno, and Alcyone, along with their parents Atlas and Pleione. As daughters of Atlas, the Hyades were sisters of the Pleiades. The English name of the cluster itself is of Greek origin (Πλειάδες), though of uncertain etymology. Suggested derivations include: from πλεῖν plein, “to sail,” making the Pleiades the “sailing ones”; from πλέος pleos, “full, many”; or from πελειάδες peleiades, “flock of doves.” 

Pleiades bright stars
Name Pronunciation (IPA & respelling) Designation Apparent magnitude Stellar classification
Alcyone /ælˈsaɪ.əniː/ al-sy-ə-nee Eta (25) Tauri 2.86 B7IIIe
Atlas /ˈætləs/ at-ləs 27 Tauri 3.62 B8III
Electra /ɨˈlɛktʃrə/ i-lek-trə 17 Tauri 3.70 B6IIIe
Maia /ˈmeɪə/, /ˈmaɪə/ maymy 20 Tauri 3.86 B7III
Merope /ˈmɛrəpiː/ merr-ə-pee 23 Tauri 4.17 B6IVev
Taygeta /teɪˈɪdʒɨtə/ tay-ij-i-tə 19 Tauri 4.29 B6V
Pleione /ˈplaɪ.əniː/ ply-ə-nee 28 (BU) Tauri 5.09 (var.) B8IVpe
Celaeno /sɨˈliːnoʊ/ sə-lee-noh 16 Tauri 5.44 B7IV
Sterope, Asterope /ˈstɛrɵpiː/, /əˈstɛrɵpiː/ (ə)-sterr-ə-pee 21 and 22 Tauri 5.64;6.41 B8Ve/B9V
18 Tauri 5.65 B8V

Imaging telescopes or lenses: TMB 92SS
Imaging cameras: SBIG ST-8300C, SBIG ST-8300M
Mounts: Sky-Watcher HEQ5
Guiding telescopes or lenses: TMB 92SS
Guiding cameras: QHYCCD QHY5
Focal reducers: Teleskop-Service TS 2.5″ flattener
Software: Maxim DL, photoshop
Filters: Baader Planetarium UV/IR Cut Filter, Hutech IDAS LPS-P2
Accessories: Teleskop-Service OAG 9mm
Dates: Sept. 17, 2012, Sept. 24, 2012
Frames:
Hutech IDAS LPS-P2: 40×600″ bin 1×1
Baader Planetarium UV/IR Cut Filter: 25×600″ bin 1×1
Integration: 10.8 hours

Author: Jacek Bobowik
AstroPhotography of the day by SPONLI 30 June 2014