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Ras Algethi, Alpha Herculis

Semiregular Variable, type SR c, in Hercules

Right Ascension 17 : 14 : 38.8 (h:m:s)

Declination +14 : 23 : 25 (deg:m:s)

Distance 380 (ly)

Visual brightness 3.1 .. 3.9 (mag)

Spectra type M5Ib-II

Right Ascension	17 : 14 : 38.8 (h:m:s)
Declination	+14 : 23 : 25 (deg:m:s)
Distance	380 (ly)
Visual brightness	3.1 .. 3.9 (mag)
Spectra type	M5Ib-II

Ras Alpethi info from Jim Kaler's Stars (Star of the Week) pages
Ras Alpethi info from Chris Dolan's constellations pages
AAVSO data for Alpha Herculis - Ephemeris
Publications on Alpha Herculis (NASA ADS)
SIMBAD data for Alpha Herculis

Recent and upcoming maxima for Ras Algheti:

2017: August 28, December 31
2018: May 6, September 8
2019: January 12, May 18, September 20
2020: January 24, May 28, October 1

[Variables Page] | [VS-net] | [Constellations] | [SEDS] | [MAA]

Hartmut Frommert
Christine Kronberg
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