56 Sagittarii

Last updated
56 Sagittarii
Observation data
Epoch J2000       Equinox J2000
Constellation Sagittarius
Right ascension 19h 46m 21.73912s [1]
Declination −19° 45 40.0132 [1]
Apparent magnitude  (V)4.87 [2]
Characteristics
Evolutionary stage horizontal branch [3]
Spectral type K0+III [4]
U−B color index +0.96 [5]
B−V color index +1.06 [5]
Astrometry
Radial velocity (Rv)+22.07 [6]  km/s
Proper motion (μ)RA: −129.40 [1]   mas/yr
Dec.: −90.55 [1]   mas/yr
Parallax (π)15.71 ± 0.23  mas [1]
Distance 208 ± 3  ly
(63.7 ± 0.9  pc)
Absolute magnitude  (MV)0.85 [2]
Details
Mass 1.77 [7]   M
Radius 11 [6]   R
Luminosity 58.97 [2]   L
Surface gravity (log g)2.58 [8]   cgs
Temperature 4,750 [9]   K
Metallicity [Fe/H]−0.07 [8]   dex
Rotational velocity (v sin i)1.9 [6]  km/s
Other designations
f Sgr, 56 Sgr, BD−20°5698, GC  27349, HD  186648, HIP  97290, HR  7515, SAO  162964, GSC  06320-02845 [10]
Database references
SIMBAD data

56 Sagittarii is a single [11] star in the southern constellation of Sagittarius. It has the Bayer designation f Sagittarii, while 56 Sagittarii is the Flamsteed designation. This object is visible to the naked eye as a faint, orange-hued point of light with an apparent visual magnitude of 4.87. [2] It is located approximately 208  light years away from the Sun based on parallax, [1] and is drifting further away with a radial velocity of +22 km/s. [6]

This is an aging giant star with a stellar classification of K0+III, [4] having exhausted the supply of hydrogen at its core and expanded to 11 [6] times the Sun's radius. It is a red clump giant, [3] which means it is on the horizontal branch and is generating energy through helium fusion at its core. The star has 1.8 [7] times the mass of the Sun and is radiating 59 [2] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,750 K. [9]

Related Research Articles

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

π Sculptoris, Latinized as Pi Sculptoris, is candidate astrometric binary star system in the southern constellation Sculptor, positioned near the eastern constellation border with Fornax. It has an orange hue and is dimly visible to the naked eye with an apparent visual magnitude of 5.25. Based upon parallax measurements, the system is located at a distance of 66 light years from the Sun, and is drifting further away with a radial velocity of +14 km/s.

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

μ Sculptoris, Latinized as Mu Sculptoris, is a solitary, orange-hued star in the southern constellation of Sculptor. It is visible to the naked eye as a dim point of light with an apparent visual magnitude of +5.30. This star is located approximately 291 light years from the Sun based on parallax, and it is drifting further away with a radial velocity of +16 km/s.

<span class="mw-page-title-main">Epsilon Scuti</span> Star in the constellation Scutum

Epsilon Scuti, Latinized from ε Scuti, is a probable astrometric binary star system in the constellation Scutum. It is faintly visible to the naked eye with an apparent visual magnitude of +4.88. Based upon an annual parallax shift of 5.71 mas as seen from Earth,> it is located approximately 570 light years from the Sun. It is moving closer to the Sun with a radial velocity of −9.8 km/s. Epsilon Scuti was a latter designation of 3 Aquilae.

<span class="mw-page-title-main">1 Aurigae</span> Star in the constellation Perseus

1 Aurigae is the original name for a star now in the constellation Perseus. It was the first entry in John Flamsteed's catalogue of stars in Auriga. When Eugène Joseph Delporte drew up simplified boundaries for the constellations on behalf of the International Astronomical Union in 1930, 1 Aurigae ended up over the border in Perseus. To avoid confusion, the star may instead be referred to by its Harvard Revised catalogue number, HR 1533.

<span class="mw-page-title-main">HR 6801</span> Star in the constellation Sagittarius

HR 6801 is a single star in the southern zodiac constellation of Sagittarius. It was designated as 1 Sagittarii by Flamsteed, but is now often referred to as 11 Sagittarii. Flamsteed's 11 Sgr actually refers to a different, much fainter star. The object is orange in hue and is visible to the naked eye as a faint point of light with an apparent visual magnitude of 4.96. The distance to this star is approximately 258 light years based on stellar parallax, and it is drifting further away with a radial velocity of +6 km/s.

<span class="mw-page-title-main">10 Leonis Minoris</span> Star in the constellation Leo Minor

10 Leonis Minoris is a single variable star in the northern constellation Leo Minor, located approximately 191 light years away based on parallax. It has the variable star designation SU Leonis Minoris; 10 Leonis Minoris is the Flamsteed designation. This body is visible to the naked eye as a faint, orange-hued star with a baseline apparent visual magnitude of 4.54. It is moving closer to the Earth with a heliocentric radial velocity of −12 km/s.

<span class="mw-page-title-main">28 Monocerotis</span> Star in the constellation Monoceros

28 Monocerotis is a single star in the equatorial constellation of Monoceros. It has an orange-hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.69. The distance to this star is approximately 450 light years based on parallax, and it has an absolute magnitude of −1.00. The star is drifting further away from the Sun with a radial velocity of +26.7 km/s.

<span class="mw-page-title-main">45 Ophiuchi</span> Star in the constellation Ophiuchus

45 Ophiuchi is a single star in the equatorial constellation of Ophiuchus, along the southern border with Scorpius. It has the Bayer designation d Ophiuchi, while 45 Ophiuchi is the Flamsteed designation. In the past it had the designation Theta Telescopii. This object is visible to the naked eye as a faint, yellow-white hued star with an apparent visual magnitude of 4.28. It is located approximately 111.6 light years away from the Sun based on parallax. The star is drifting further from the Earth with a heliocentric radial velocity of +38 km/s.

<span class="mw-page-title-main">Phi Ophiuchi</span> Single star in the constellation Ophiuchus

Phi Ophiuchi, a name Latinized from φ Ophiuchi, is a single star in the equatorial constellation of Ophiuchus. It has a yellow hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.27. The star is located at a distance of approximately 244 light-years from the Sun based on parallax, but it is drifting closer with a radial velocity of −33.5 km/s.

<span class="mw-page-title-main">71 Ophiuchi</span> Giant star in the constellation of Ophiuchus

71 Ophiuchi is a single star in the equatorial constellation of Ophiuchus. It is visible to the naked eye as a faint, yellow-hued point of light with an apparent visual magnitude of 4.64. The star is located approximately 273 light years away from the Sun based on parallax, and is moving closer with a radial velocity of −3 km/s.

<span class="mw-page-title-main">41 Ophiuchi</span> Binary star system in the constellation Ophiuchus

41 Ophiuchi is a binary star system in the zodiac constellation of Ophiuchus, and is positioned less than half a degree to the south of the celestial equator. It is visible to the naked eye as a faint, orange-hued point of light with a combined apparent visual magnitude of 4.72. The distance to this system is approximately 202 light years based on parallax.

<span class="mw-page-title-main">74 Ophiuchi</span> Star in the constellation Ophiuchus

74 Ophiuchi is a suspected binary star in the equatorial constellation of Ophiuchus, near the border with Serpens Cauda. It is visible to the naked eye as a faint, yellow-hued point of light with a combined apparent visual magnitude of 4.85. The system is located at a distance of 238 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +4.4 km/s.

<span class="mw-page-title-main">24 Scorpii</span> Star in the constellation Ophiuchus

24 Scorpii is a star that was originally placed by John Flamsteed within the constellation of Scorpius but in now placed within the southeastern constellation of Ophiuchus. It is visible to the naked eye as a faint, yellow-hued point of light with an apparent visual magnitude of 4.91. Based on the trigonometric parallax published in Gaia Data Release 2, the star lies approximately 121 parsecs or 390 light years away. It is positioned near the ecliptic and thus is subject to lunar occultations.

<span class="mw-page-title-main">Epsilon Pavonis</span> Star in the constellation Pavo

Epsilon Pavonis, Latinized from ε Pavonis, is a single, white-hued star in the constellation Pavo. It can be viewed with the naked eye, having an apparent visual magnitude of 3.97. The annual parallax shift of 31.04 mas provides a distance estimate of 105 light years from the Sun. This star is a member of the proposed Argus Association, a young moving group of more than 60 stars associated with the IC 2391 cluster. Epsilon Pavonis is moving closer to the Sun with a radial velocity of −6.7 km/s.

<span class="mw-page-title-main">Pi Pavonis</span> Astrometric binary star system in the constellation Pavo

π Pavonis, Latinized as Pi Pavonis, is a candidate astrometric binary star system in the constellation Pavo. It is a white-hued star that is visible to the naked eye as a faint point of light with an apparent visual magnitude of 4.33. The distance to this object is 130 light years based on parallax, but it is drifting closer to the Sun with a radial velocity of −15.6 km/s.

<span class="mw-page-title-main">HD 18970</span> Star in the constellation Perseus

HD 18970 is a class G9.5III star in the constellation Perseus. Its apparent magnitude is 4.77 and it is approximately 211 light years away based on parallax.

<span class="mw-page-title-main">54 Persei</span> Star in the constellation Perseus

54 Persei is a single star in the northern constellation of Perseus. It is visible to the naked eye as a faint, yellow-hued star with an apparent visual magnitude of 4.93. The star is located approximately 220 light years away based on parallax, but is drifting closer with a radial velocity of −27 km/s.

<span class="mw-page-title-main">11 Puppis</span> Star in the constellation Puppis

11 Puppis is a single star in the southern constellation of Puppis, located approximately 522 light years away based on parallax. It has the Bayer designation j Puppis; 11 Puppis is the Flamsteed designation. This object is visible to the naked eye as a faint, yellow-white star with an apparent visual magnitude of 4.20. It is moving further from the Earth with a heliocentric radial velocity of +13.3 km/s.

<span class="mw-page-title-main">19 Puppis</span> Binary star in the constellation Puppis

19 Puppis is a binary star system in the southern constellation of Puppis, near the northern border with Hydra and Monoceros. It is visible to the naked eye as a faint, yellow-hued star with an apparent visual magnitude of 4.72. The system is located approximately 177 light years away from the system based on parallax. It is receding from the Earth with a heliocentric radial velocity of +36 km/s, having come to within 31 light-years some 1.4 million years ago.

<span class="mw-page-title-main">43 Sagittarii</span> Star in the constellation of Sagittarius

43 Sagittarii is a single star in the southern constellation of Sagittarius. It has the Bayer designation d Sagittarii, while 43 Sagittarii is the Flamsteed designation. This object is visible to the naked eye as a faint, yellow-hued star with an apparent visual magnitude of 4.88. From parallax measurements, it is estimated to lie around 470 light years away from the Sun. The star is drifting further from the Earth with a heliocentric radial velocity of +15.2 km/s. It is located near the ecliptic and thus is subject to lunar occultations.

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