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Star in the constellation of Octans
Mu1 Octantis ,
Latinized from μ1 Octantis , is a solitary
star in the southern
circumpolar constellation
Octans . It has an
apparent magnitude of 5.98,
[2] allowing it to be faintly visible to the
naked eye under ideal conditions. Located 335
light years away,
[1] it is approaching the
Sun with a heliocentric
radial velocity of −36
km/s .
[5]
This object is an
F-type star with the blended
luminosity class of a
giant star and a
bright giant .
[3] At present it has 1.36 times the
mass of the Sun
[7] but has expanded to 4.68 times its girth.
[7] It radiates at 34.3
L ☉ from its enlarged
photosphere at an
effective temperature of 6,521
K ,
[8] giving it a yellow white glow. Mu1 Octantis is metal enriched and has an age of 900
million years .
[9]
References
^
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 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics . 355 : L27–L30.
Bibcode :
2000A&A...355L..27H .
ISSN
0004-6361 .
^
a
b Houk, N.; Cowley, A. P. (1975). University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0 .
Bibcode :
1975mcts.book.....H .
^
a
b Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1 January 1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory . 4 : 99–110.
Bibcode :
1966CoLPL...4...99J .
^
a
b Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters . 32 (11): 759–771.
arXiv :
1606.08053 .
Bibcode :
2006AstL...32..759G .
doi :
10.1134/S1063773706110065 .
ISSN
1063-7737 .
S2CID
119231169 .
^ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters . 38 (5): 331–346.
arXiv :
1108.4971 .
Bibcode :
2012AstL...38..331A .
doi :
10.1134/S1063773712050015 .
ISSN
1063-7737 .
S2CID
255204555 .
^
a
b
c
d
e Stassun, Keivan G.; et al. (9 September 2019).
"The Revised TESS Input Catalog and Candidate Target List" . The Astronomical Journal . 158 (4): 138.
arXiv :
1905.10694 .
Bibcode :
2019AJ....158..138S .
doi :
10.3847/1538-3881/ab3467 .
ISSN
0004-6256 .
^
a
b
c McDonald, I.; Zijlstra, A. A.; Watson, R. A. (2017).
"Fundamental parameters and infrared excesses of Tycho-Gaia stars" . Monthly Notices of the Royal Astronomical Society . 471 (1): 770.
arXiv :
1706.02208 .
Bibcode :
2017MNRAS.471..770M .
doi :
10.1093/mnras/stx1433 .
^
a
b
c Holmberg, J.; Nordström, B.; Andersen, J. (July 2009).
"The Geneva-Copenhagen survey of the solar neighbourhood: III. Improved distances, ages, and kinematics" . Astronomy & Astrophysics . 501 (3): 941–947.
arXiv :
0811.3982 .
Bibcode :
2009A&A...501..941H .
doi :
10.1051/0004-6361/200811191 .
ISSN
0004-6361 .