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Star in the constellation Boötes
R Boötis is a
variable star in the northern
constellation of
Boötes . Typically the star is too faint to be readily visible to the naked eye, with a brightness that fluctuates between
apparent visual magnitudes of 9.98.
[5] The distance to this star is approximately 2,150
light years based on
parallax measurements.
[2] It is drifting closer with a
radial velocity of about −58 km/s.
[7]
The variability of this star was discovered by German astronomer
F. W. Argelander in 1857.
[12] It is classified as a
Mira-type
pulsating variable that ranges in brightness from magnitude 6.0 down to 13.3 with a period of 223.11 days.
[3]
[6] The
stellar classification of the star ranges from M4e to M8e,
[4] where the 'e' indicates
emission features in the spectrum.
References
^
"Download Data" . aavso.org . AAVSO. Retrieved 1 October 2021 .
^
a
b
c
d
e
f
Brown, A. G. A. ; et al. (Gaia collaboration) (2021).
"Gaia Early Data Release 3: Summary of the contents and survey properties" .
Astronomy & Astrophysics . 649 : A1.
arXiv :
2012.01533 .
Bibcode :
2021A&A...649A...1G .
doi :
10.1051/0004-6361/202039657 .
S2CID
227254300 . (Erratum:
doi :
10.1051/0004-6361/202039657e ) .
Gaia EDR3 record for this source at
VizieR .
^
a
b
c Samus, N. N.; et al. (2017). "General Catalogue of Variable Stars".
Astronomy Reports . 5.1. 61 (1): 80–88.
Bibcode :
2017ARep...61...80S .
doi :
10.1134/S1063772917010085 .
S2CID
125853869 .
^
a
b Keenan, Philip C.; et al. (1974).
"Revised Catalog of Spectra of Mira Variables of Types ME and Se" . Astrophysical Journal Supplement . 28 : 271.
Bibcode :
1974ApJS...28..271K .
doi :
10.1086/190318 .
^
a
b 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 .
^
a
b VSX (4 January 2010).
"R Boötis" . AAVSO Website .
American Association of Variable Star Observers . Retrieved 26 June 2014 .
^
a
b 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 .
^
a
b
c
d Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevic, G.; Monari, G.; Cantat-Gaudin, T. (2019-08-01). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics . 628 : A94.
arXiv :
1904.11302 .
Bibcode :
2019A&A...628A..94A .
doi :
10.1051/0004-6361/201935765 .
ISSN
0004-6361 .
S2CID
131780028 .
^ Kervella, Pierre; et al. (March 2019). "Stellar and substellar companions of nearby stars from Gaia DR2. Binarity from proper motion anomaly". Astronomy & Astrophysics . 623 : 23.
arXiv :
1811.08902 .
Bibcode :
2019A&A...623A..72K .
doi :
10.1051/0004-6361/201834371 .
S2CID
119491061 . A72.
^ Gaia Collaboration; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; Babusiaux, C.; Bailer-Jones, C. A. L.; Biermann, M.; Evans, D. W.; Eyer, L.; Jansen, F. (2018-08-01).
"Gaia Data Release 2. Summary of the contents and survey properties" . Astronomy and Astrophysics . 616 : A1.
arXiv :
1804.09365 .
Bibcode :
2018A&A...616A...1G .
doi :
10.1051/0004-6361/201833051 .
ISSN
0004-6361 .
^
"R Boo" .
SIMBAD .
Centre de données astronomiques de Strasbourg . Retrieved 2021-05-01 .
^ Isles, J. E.; Saw, D. R. B. (February 1987). "106 Mira Stars, - I. R Ari, R Aur, X Aur, R Boo and S Boo". Journal of the British Astronomical Association . 97 (2): 106–116.
Bibcode :
1987JBAA...97..106I .