From Wikipedia, the free encyclopedia
Variable star in the constellation Horologium
The
light curve of R Horologii from AAVSO
V band data
[12]
R Horologii is a
red giant
star approximately 760
light-years away in the southern
constellation of
Horologium.
[13] It is a
Mira variable with a period of 404.83
days,
[14] ranging from
apparent magnitude 4.7 to 14.3—one of the largest ranges in brightness known of stars in the night sky visible to the unaided eye.
[2] The star is losing mass at the rate of 5.9×10−7 M☉·y−1.
[10]
-
^ Applying the
Stefan–Boltzmann law with a nominal
solar
effective temperature of 5,772
K:
.
- ^
a
b
c
d Vallenari, A.; et al. (Gaia collaboration) (2023).
"Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1.
arXiv:
2208.00211.
Bibcode:
2023A&A...674A...1G.
doi:
10.1051/0004-6361/202243940.
S2CID
244398875.
Gaia DR3 record for this source at
VizieR.
- ^
a
b Privett, Grant; Jones, Kevin (2013).
The Constellation Observing Atlas. New York, New York: Springer Science & Business Media. p. 102.
ISBN
9781461476481.
-
^ Keenan, Philip C. (June 1966).
"A Catalogue of Spectra of Mira Variables of Types ME and Se". Astrophysical Journal Supplement. 13: 333.
Bibcode:
1966ApJS...13..333K.
doi:
10.1086/190139.
-
^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331,
arXiv:
1108.4971,
Bibcode:
2012AstL...38..331A,
doi:
10.1134/S1063773712050015,
S2CID
119257644.
-
^ Samus', N. N; Kazarovets, E. V; Durlevich, O. V; Kireeva, N. N; Pastukhova, E. N (2017). "General catalogue of variable stars: Version GCVS 5.1". Astronomy Reports. 61 (1): 80.
Bibcode:
2017ARep...61...80S.
doi:
10.1134/S1063772917010085.
S2CID
125853869.
-
^ Gontcharov, G. A. (November 2006), "Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system", Astronomy Letters, 32 (11): 759–771,
arXiv:
1606.08053,
Bibcode:
2006AstL...32..759G,
doi:
10.1134/S1063773706110065,
S2CID
119231169.
-
^ Bailer-Jones, C. A. L.; Rybizki, J.; Fouesneau, M.; Demleitner, M.; Andrae, R. (2021-03-01).
"Estimating distances from parallaxes. V: Geometric and photogeometric distances to 1.47 billion stars in Gaia Early Data Release 3". The Astronomical Journal. 161 (3): 147.
arXiv:
2012.05220.
Bibcode:
2021AJ....161..147B.
doi:
10.3847/1538-3881/abd806.
ISSN
0004-6256. Data about this star can be seen
here.
- ^
a
b
c Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevič, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; de Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (August 2019).
"Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy & Astrophysics. 628: A94.
arXiv:
1904.11302.
Bibcode:
2019A&A...628A..94A.
doi:
10.1051/0004-6361/201935765.
ISSN
0004-6361.
- ^
a
b
c Danilovich, T.; Teyssier, D.; Justtanont, K.; Olofsson, H.; Cerrigone, L.; Bujarrabal, V.; Alcolea, J.; Cernicharo, J.; Castro-Carrizo, A.; García-Lario, P.; Marston, A. (2015-09-01).
"New observations and models of circumstellar CO line emission of AGB stars in the Herschel SUCCESS programme". Astronomy & Astrophysics. 581: A60.
arXiv:
1506.09065.
doi:
10.1051/0004-6361/201526705.
ISSN
0004-6361.
- ^
a
b Danilovich, T.; et al. (October 2017), "Sulphur-bearing molecules in AGB stars. I. The occurrence of hydrogen sulphide", Astronomy & Astrophysics, 606: 14,
arXiv:
1707.06003,
Bibcode:
2017A&A...606A.124D,
doi:
10.1051/0004-6361/201731203,
S2CID
55533463, A124
-
^
"R Horologii".
SIMBAD.
Centre de données astronomiques de Strasbourg. Retrieved 18 March 2016.
-
^
"Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
-
^ van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction".
Astronomy and Astrophysics. 474 (2): 653–64.
arXiv:
0708.1752.
Bibcode:
2007A&A...474..653V.
doi:
10.1051/0004-6361:20078357.
S2CID
18759600.
-
^ Templeton, M. R.; Mattei, J. A.; Willson, L. A. (2005). "Secular Evolution in Mira Variable Pulsations". The Astronomical Journal. 130 (2): 776–788.
arXiv:
astro-ph/0504527.
Bibcode:
2005AJ....130..776T.
doi:
10.1086/431740.
S2CID
359940.