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Star in the constellation Triangulum.
5 Trianguli is a solitary star located in the northern
constellation
Triangulum . With an
apparent magnitude of 6.23,
[2] it’s barely visible to the
naked eye under ideal conditions. The star is located 399
light years
[1] away from the
Solar System , but is drifting away with a
radial velocity of 7.7 km/s.
[5]
5 Trianguli has a classification of A0 Vm,
[3] which states it’s an
A-type main-sequence star with unusually strong
metallic lines. It has 2.22 times the
mass of the Sun and 2.96 times the
radius of the Sun . 5 Trianguli radiates at 48
solar luminosities from its
photosphere at an
effective temperature of 8,836
kelvin , which gives it a white-hue of an
A-type star .
[7] It has a low
projected rotational velocity of 15 km/s, common for
Am stars .
[9]
References
^
a
b
c
d
e
f
Brown, A. G. A. ; et al. (Gaia collaboration) (August 2018).
"Gaia Data Release 2: Summary of the contents and survey properties" .
Astronomy & Astrophysics . 616 . A1.
arXiv :
1804.09365 .
Bibcode :
2018A&A...616A...1G .
doi :
10.1051/0004-6361/201833051 .
Gaia DR2 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 Palmer, D. R.; Walker, E. N.; Jones, D. H. P.; Wallis, R. E. (1968). "The radial velocities spectral types and projected rotational velocities of 633 bright northern A stars". Royal Greenwich Observatory Bulletins . 135 : 385.
Bibcode :
1968RGOB..135..385P .
^
a
b Sato, K.; Kuji, S. (November 1990). "MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington". Astronomy and Astrophysics Supplement Series . 85 : 1069.
Bibcode :
1990A&AS...85.1069S .
ISSN
0365-0138 .
^
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 Stassun, Keivan G.; et al. (September 2018).
"The TESS Input Catalog and Candidate Target List" . The Astronomical Journal . 156 (3): 102.
arXiv :
1706.00495 .
Bibcode :
2018AJ....156..102S .
doi :
10.3847/1538-3881/aad050 .
ISSN
0004-6256 .
^ Anders, F.; et al. (1 August 2019). "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 .
^
a
b Abt, Helmut A.; Morrell, Nidia I. (July 1995).
"The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars" . The Astrophysical Journal Supplement Series . 99 : 135.
Bibcode :
1995ApJS...99..135A .
doi :
10.1086/192182 .
ISSN
0067-0049 .