hd+17092 Latitude and Longitude:

Sky map 02h 46m 22s, +49° 39′ 11″
From Wikipedia, the free encyclopedia
HD 17092
Observation data
Epoch J2000.0       Equinox J2000.0
Constellation Perseus
Right ascension 02h 46m 22.1179s [1]
Declination +49° 39′ 11.0949″ [1]
Apparent magnitude (V) 7.73 [2]
Characteristics
Evolutionary stage Giant [2]
Spectral type K0III [3]
B−V color index 1.247±0.014 [4]
Astrometry
Radial velocity (Rv)5.49±0.03 [5] km/s
Proper motion (μ) RA: 40.328±0.100 [1]  mas/ yr
Dec.: −10.312±0.099 [1]  mas/ yr
Parallax (π)4.3499 ± 0.0516  mas [1]
Distance750 ± 9  ly
(230 ± 3  pc)
Absolute magnitude (MV)+1.76 [4]
Details [6]
Mass1.23±0.18  M
Radius12.04+0.51
−0.35
[1]  R
Luminosity57±1 [1]  L
Surface gravity (log g)2.47±0.11  cgs
Temperature4,630±30  K
Metallicity [Fe/H]0.11±0.05  dex
Rotation505 days [4]
Rotational velocity (v sin i)<1 km/s
Age5.82±2.75  Gyr
Other designations
BD+49° 767, HD 17092, SAO 38313, PPM 45466
Database references
SIMBAD data

HD 17092 is a star in the constellation of Perseus. It has an orange hue but is visible only with binoculars or better equipment, having an apparent visual magnitude of 7.73. [2] The distance to this star is approximately 750  light years from the Sun based on parallax, and is drifting further away with a radial velocity of +5.5 km/s. [5]

This object is an aging giant star with a stellar classification of K0III, [3] which means it has exhausted the supply of hydrogen at its core then cooled and expanded off the main sequence. [4] It is roughly six billion years old with 1.2 [6] times the mass of the Sun and has expanded to 12 times the Sun's radius. [1] The star is radiating 57 [1] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,630 K. [6]

Planetary system

On 6 May 2007, a planet HD 17092 b was discovered with the Hobby-Eberly Telescope by Niedzielski who used the wobble method. This planet is a massive gas giant and orbits at 1.29 astronomical units from the star with a period of about 360 days. [4]

The HD 17092 planetary system [4]
Companion
(in order from star)
Mass Semimajor axis
( AU)
Orbital period
( days)
Eccentricity Inclination Radius
b ≥4.6±0.3  MJ 1.29±0.05 359.9±2.4 0.166±0.052

References

  1. ^ a b c d e f g h i 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.
  2. ^ a b c Maldonado, J.; et al. (April 2019), "Connecting substellar and stellar formation: the role of the host star's metallicity", Astronomy & Astrophysics, 624: 7, arXiv: 1903.01141, Bibcode: 2019A&A...624A..94M, doi: 10.1051/0004-6361/201833827, S2CID  118934484, A94
  3. ^ a b Skiff, B. A. (October 2014), General Catalogue of Stellar Spectral Classifications, Bibcode: 2014yCat....1.2023S
  4. ^ a b c d e f Niedzielski, A.; et al. (2007). "A Planetary‐Mass Companion to the K0 Giant HD 17092". The Astrophysical Journal. 669 (2): 1354–1358. arXiv: 0705.0935. Bibcode: 2007ApJ...669.1354N. doi: 10.1086/521784. S2CID  14853462.
  5. ^ a b Deka-Szymankiewicz, B.; et al. (2018), "The Penn State - Toruń Centre for Astronomy Planet Search stars. IV. Dwarfs and the complete sample", Astronomy and Astrophysics, 615: A31, arXiv: 1801.02899, Bibcode: 2018A&A...615A..31D, doi: 10.1051/0004-6361/201731696, S2CID  85526201
  6. ^ a b c Maldonado, J.; Villaver, E. (April 2016), "Evolved stars and the origin of abundance trends in planet hosts", Astronomy & Astrophysics, 588: 11, arXiv: 1602.00835, Bibcode: 2016A&A...588A..98M, doi: 10.1051/0004-6361/201527883, S2CID  119212009, A98



hd+17092 Latitude and Longitude:

Sky map 02h 46m 22s, +49° 39′ 11″
From Wikipedia, the free encyclopedia
HD 17092
Observation data
Epoch J2000.0       Equinox J2000.0
Constellation Perseus
Right ascension 02h 46m 22.1179s [1]
Declination +49° 39′ 11.0949″ [1]
Apparent magnitude (V) 7.73 [2]
Characteristics
Evolutionary stage Giant [2]
Spectral type K0III [3]
B−V color index 1.247±0.014 [4]
Astrometry
Radial velocity (Rv)5.49±0.03 [5] km/s
Proper motion (μ) RA: 40.328±0.100 [1]  mas/ yr
Dec.: −10.312±0.099 [1]  mas/ yr
Parallax (π)4.3499 ± 0.0516  mas [1]
Distance750 ± 9  ly
(230 ± 3  pc)
Absolute magnitude (MV)+1.76 [4]
Details [6]
Mass1.23±0.18  M
Radius12.04+0.51
−0.35
[1]  R
Luminosity57±1 [1]  L
Surface gravity (log g)2.47±0.11  cgs
Temperature4,630±30  K
Metallicity [Fe/H]0.11±0.05  dex
Rotation505 days [4]
Rotational velocity (v sin i)<1 km/s
Age5.82±2.75  Gyr
Other designations
BD+49° 767, HD 17092, SAO 38313, PPM 45466
Database references
SIMBAD data

HD 17092 is a star in the constellation of Perseus. It has an orange hue but is visible only with binoculars or better equipment, having an apparent visual magnitude of 7.73. [2] The distance to this star is approximately 750  light years from the Sun based on parallax, and is drifting further away with a radial velocity of +5.5 km/s. [5]

This object is an aging giant star with a stellar classification of K0III, [3] which means it has exhausted the supply of hydrogen at its core then cooled and expanded off the main sequence. [4] It is roughly six billion years old with 1.2 [6] times the mass of the Sun and has expanded to 12 times the Sun's radius. [1] The star is radiating 57 [1] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,630 K. [6]

Planetary system

On 6 May 2007, a planet HD 17092 b was discovered with the Hobby-Eberly Telescope by Niedzielski who used the wobble method. This planet is a massive gas giant and orbits at 1.29 astronomical units from the star with a period of about 360 days. [4]

The HD 17092 planetary system [4]
Companion
(in order from star)
Mass Semimajor axis
( AU)
Orbital period
( days)
Eccentricity Inclination Radius
b ≥4.6±0.3  MJ 1.29±0.05 359.9±2.4 0.166±0.052

References

  1. ^ a b c d e f g h i 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.
  2. ^ a b c Maldonado, J.; et al. (April 2019), "Connecting substellar and stellar formation: the role of the host star's metallicity", Astronomy & Astrophysics, 624: 7, arXiv: 1903.01141, Bibcode: 2019A&A...624A..94M, doi: 10.1051/0004-6361/201833827, S2CID  118934484, A94
  3. ^ a b Skiff, B. A. (October 2014), General Catalogue of Stellar Spectral Classifications, Bibcode: 2014yCat....1.2023S
  4. ^ a b c d e f Niedzielski, A.; et al. (2007). "A Planetary‐Mass Companion to the K0 Giant HD 17092". The Astrophysical Journal. 669 (2): 1354–1358. arXiv: 0705.0935. Bibcode: 2007ApJ...669.1354N. doi: 10.1086/521784. S2CID  14853462.
  5. ^ a b Deka-Szymankiewicz, B.; et al. (2018), "The Penn State - Toruń Centre for Astronomy Planet Search stars. IV. Dwarfs and the complete sample", Astronomy and Astrophysics, 615: A31, arXiv: 1801.02899, Bibcode: 2018A&A...615A..31D, doi: 10.1051/0004-6361/201731696, S2CID  85526201
  6. ^ a b c Maldonado, J.; Villaver, E. (April 2016), "Evolved stars and the origin of abundance trends in planet hosts", Astronomy & Astrophysics, 588: 11, arXiv: 1602.00835, Bibcode: 2016A&A...588A..98M, doi: 10.1051/0004-6361/201527883, S2CID  119212009, A98



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