29 Persei

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29 Persei
Perseus constellation map.svg
Red circle.svg
Location of 29 Persei (circled)
Observation data
Epoch J2000       Equinox J2000
Constellation Perseus
Right ascension 03h 18m 37.74077s [1]
Declination 50° 13 19.8341 [1]
Apparent magnitude  (V)5.16 [2]
Characteristics
Spectral type B3V [3]
U−B color index −0.56 [4]
B−V color index −0.06 [4]
Astrometry
Radial velocity (Rv)−1.50 [5]  km/s
Proper motion (μ)RA: +23.574 [1]   mas/yr
Dec.: −24.407 [1]   mas/yr
Parallax (π)5.12 ± 0.29  mas [1]
Distance 640 ± 40  ly
(200 ± 10  pc)
Absolute magnitude  (MV)−1.31 [6]
Details
Mass 6.8 [7]   M
Radius 3.9 [8]   R
Luminosity 960 [6]   L
Surface gravity (log g)4.025±0.113 [9]   cgs
Temperature 16,143 [6]   K
Metallicity [Fe/H]0.00 [10]   dex
Rotational velocity (v sin i)120 [11]  km/s
Other designations
29 Per, BD+49°899, FK5  2188, GC  3934, HD  20365, HIP  15404, HR  987, SAO  23944 [12]
Database references
SIMBAD data
29 Persei is the bright star in the center of this optical light image. 31 Persei is the bright star lower and to the left of 29 Persei. 29 Persei.jpg
29 Persei is the bright star in the center of this optical light image. 31 Persei is the bright star lower and to the left of 29 Persei.

29 Persei is a single [13] star in the northern constellation of Perseus, located approximately 640 light years away from the Sun based on parallax. [1] It is visible to the naked eye as faint, blue-white hued star with an apparent visual magnitude of 5.16. [2] This object is a member of the Alpha Persei Cluster. [14] [15]

This is a B-type main-sequence star with a stellar classification of B3 V. [3] During the 1930s it was reported to have a variable radial velocity, but that may instead have been due to instrument error. [16] The star has a high rate of spin, showing a projected rotational velocity of 120 km/s. [11] It has 6.8 [7] times the mass of the Sun and about 3.9 [8] times the Sun's radius. 29 Persei is radiating 960 times the Sun's luminosity from its photosphere at an effective temperature of 16,143 K. [6]

Related Research Articles

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<span class="mw-page-title-main">Pi Persei</span> Star in the constellation Perseus

π Persei, Latinized as Pi Persei, is a single star in the northern constellation of Perseus. It has the traditional name Gorgonea Secunda, the second of three Gorgons in the mythology of the hero Perseus. This star has a white hue and is faintly visible to the naked eye with an apparent visual magnitude of +4.7. It is located at a distance of approximately 303 light years from the Sun based on parallax, and is moving further away with a radial velocity of +14 km/s.

<span class="mw-page-title-main">29 Vulpeculae</span> Star in the constellation Vulpecula

29 Vulpeculae is a suspected astrometric binary star system in the northern constellation Vulpecula. It is visible to the naked eye as a faint, white-hued point of light with an apparent visual magnitude of 4.82. The system lies approximately 209 light years away from the Sun based on parallax, and is a member of the IC 2391 supercluster. It is moving closer to the Earth with a heliocentric radial velocity of −17 km/s.

<span class="mw-page-title-main">Mu Ophiuchi</span> Star in the constellation Ophiuchus

μ Ophiuchi, Latinized as Mu Ophiuchi, is a solitary, blue-white hued star in the equatorial constellation of Ophiuchus. It is visible to the naked as a faint point of light with an apparent visual magnitude of 4.62. This object is located approximately 760 light years away from the Sun based on parallax, but is drifting closer with a radial velocity of −18.5 km/s.

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<span class="mw-page-title-main">34 Persei</span> Star in the constellation Perseus

34 Persei is a binary star system in the northern constellation of Perseus. It is visible to the naked eye as a faint, blue-white hued point of light with a combined apparent visual magnitude of 4.67. The system is located approximately 540 light years away from the Sun based on parallax, but it is drifting closer with a radial velocity of −3.5 km/s. It is a likely member of the Alpha Persei Cluster.

<span class="mw-page-title-main">53 Persei</span> Star in the constellation Perseus

53 Persei is a single variable star in the northern constellation of Perseus. It has the Bayer designation d Persei, while 53 Persei is the Flamsteed designation. The star is visible to the naked eye as a faint, blue-white hued point of light with an apparent visual magnitude of 4.80. It is located approximately 480 light years away from the Sun, as determined from parallax, and is drifting further away with a radial velocity of +7.3 km/s.

<span class="mw-page-title-main">32 Persei</span> Star in the constellation Perseus

32 Persei is a single star located 149 light years away from the Sun in the northern constellation of Perseus. It has the Bayer designation of l Persei, while 32 Persei is the Flamsteed designation. This object is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 4.96. It is moving closer to the Earth with a heliocentric radial velocity of −9 km/s, and is a member of the Sirius supercluster: a stream of stars that share a common motion through space.

<span class="mw-page-title-main">40 Persei</span> Star in the constellation Perseus

40 Persei is a wide binary star system in the northern constellation of Perseus. It has the Bayer designation ο Persei, while 40 Persei is the Flamsteed designation. The system is visible to the naked eye as a faint, blue-white hued point of light with an apparent visual magnitude of 4.97. It is located approximately 1060 light years away from the Sun based on parallax, and is drifting further away with a radial velocity of +22 km/s. The system is a member of the Perseus OB2 association of co-moving stars.

<span class="mw-page-title-main">4 Persei</span> Star in the constellation Perseus

4 Persei is a single star in the northern constellation of Perseus, located around 670 light years away from the Sun. It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of 5.04 The Bayer designation for this star is g Persei; 4 Persei is the Flamsteed designation. This object has a peculiar velocity of 26.3 km/s and may be a runaway star.

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HD 21278 is a binary star system in the constellation Perseus, located within the 60±7 million year old Alpha Persei Cluster. It has a blue-white hue and is visible to the naked eye with a combined apparent visual magnitude of 4.99. The system is located at a distance of approximately 580 light years from the Sun based on parallax, and it is drifting further away with a radial velocity of +1.20 km/s.

<span class="mw-page-title-main">Kappa Phoenicis</span> Star in the constellation Phoenix

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<span class="mw-page-title-main">QZ Puppis</span> Blue main sequence star in the constellation Puppis

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57 Persei, or m Persei, is a suspected triple star system in the northern constellation of Perseus. It is at the lower limit of visibility to the naked eye, having a combined apparent visual magnitude of 6.08. The annual parallax shift of 16.4 mas provides a distance measure of 199 light years. 57 Persei is moving closer to the Sun with a radial velocity of about −23 km/s and will make perihelion in around 2.6 million years at a distance of roughly 22 ly (6.6 pc).

<span class="mw-page-title-main">42 Persei</span> Binary star system in the constellation Perseus

42 Persei is a binary star system in the northern constellation of Perseus. It has the Bayer designation n Persei, while 42 Persei is the Flamsteed designation. The system is visible to the naked eye as a dim, white-hued point of light with an apparent visual magnitude of 5.11. It is located around 93 parsecs (302 ly) distant from the Sun, but is drifting closer with a radial velocity of −12.4 km/s.

<span class="mw-page-title-main">43 Persei</span> Spectroscopic binary star system in the constellation Perseus

43 Persei is a binary star system in the northern constellation Perseus. It is visible to the naked eye as a dim, yellow-white hued star with an apparent visual magnitude of 5.28. The system is located around 38.5 parsecs (125.4 ly) distant from the Sun, based on parallax.

<span class="mw-page-title-main">31 Persei</span> Star in the constellation Perseus

31 Persei is a single star in the northern constellation of Perseus. It is visible to the naked eye as a dim, blue-white hued point of light with an apparent visual magnitude of 5.05. This star is located around 172 parsecs (560 ly) away from the Sun, and it is drifting closer with a radial velocity of −1.6 km/s. It is a likely member of the Alpha Persei Cluster.

<span class="mw-page-title-main">21 Persei</span> Star in the constellation Perseus

21 Persei is a single, variable star in the northern constellation of Perseus, located about 331 light years away from the Sun. It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 5.10 km/s. The object is moving further from the Earth with a heliocentric radial velocity of +8.5 km/s. It has the variable star designation LT Persei; 21 Persei is the Flamsteed designation.

<span class="mw-page-title-main">10 Persei</span> Star in the constellation Perseus

10 Persei is a blue supergiant star in the constellation Perseus. Its apparent magnitude is 6.26 although it is slightly variable.

<span class="mw-page-title-main">HD 21071</span> Star in the constellation Perseus

HD 21071 is a blue-white hued variable star in the northern constellation of Perseus. Also known as V576 Persei, it is a sixth magnitude star that is dimly visible to the naked eye under good viewing conditions, having an apparent visual magnitude of 6.09. The brightness of the star varies with a multiperiodic cycle. The distance to HD 21071, as determined from an annual parallax shift of 6.1 mas, is 535 light years. It is a member of the young Alpha Persei cluster, Melotte 20, and moving is closer to the Earth with a heliocentric radial velocity of −1.5 km/s.

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