Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cygnus |
Right ascension | 20h 01m 21.56485s [1] |
Declination | +50° 06′ 16.8912″ [1] |
Apparent magnitude (V) | 5.12 [2] |
Characteristics | |
Evolutionary stage | giant |
Spectral type | G8 III [3] |
B−V color index | 1.122 [4] |
Astrometry | |
Radial velocity (Rv) | −0.25±0.16 [1] km/s |
Proper motion (μ) | RA: +15.520 [1] mas/yr Dec.: +5.805 [1] mas/yr |
Parallax (π) | 7.2271 ± 0.0853 mas [1] |
Distance | 451 ± 5 ly (138 ± 2 pc) |
Absolute magnitude (MV) | −0.56 [5] |
Details | |
Mass | 2.44 [6] M☉ |
Radius | 22.27 [6] R☉ |
Luminosity | 204.8 [6] L☉ |
Surface gravity (log g) | 2.50 [4] cgs |
Temperature | 4,700 [4] K |
Metallicity [Fe/H] | −0.09±0.04 [5] dex |
Rotational velocity (v sin i) | 3.63 [4] km/s |
Other designations | |
Database references | |
SIMBAD | data |
26 Cygni is a single [8] star in the northern constellation of Cygnus. It has the Bayer designation e Cygni, while 26 Cygni is the Flamsteed designation. This star is visible to the naked eye as a faint, yellow-hued point of light with an apparent visual magnitude of 5.12. [2] It is located around 451 light-years (138 pc) distant from the Sun, [1] based on parallax measurements. The radial velocity is close to negligible, being measured at −0.3 km/s. [1]
This object is an evolved giant star with a stellar classification of G8 III; [3] a star that has used up its core hydrogen and left the main sequence. It is most likely (88% chance) on the horizontal branch, in which case stellar modelling yields an estimated 2.44 times the mass of the Sun and 22 times the Sun's radius. [6] It is radiating 205 [6] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,700 K. [4]
There is a magnitude 8.94 visual companion at an angular separation of 41.6″ along a position angle of 150°, as of 2014. [9]
4 Andromedae, abbreviated 4 And, is a single star in the northern constellation of Andromeda. 4 Andromedae is the Flamsteed designation. It is dimly visible to the naked eye with an apparent visual magnitude of 5.308. Based upon an annual parallax shift of 9.7 mas as seen from Earth's orbit, it is located 337 light years away. The star is moving closer with a heliocentric radial velocity of −11 km/s. It has a magnitude 11.7 visual companion at an angular separation of 51.10″ along a position angle of 348°, as of 2002.
55 Andromedae, abbreviated 55 And, is a single, orange-hued star in the northern constellation of Andromeda. 55 Andromedae is the Flamsteed designation. It is visible to the naked eye with an apparent visual magnitude of 5.42. Based upon an annual parallax shift of 4.7 mas, it is located about 730 light years from the Sun. 55 And is moving closer to the Earth with a heliocentric radial velocity of −7.6 km/s. It is a member of the Sirius supercluster.
42 Aquarii is a single star located 447 light years away from the Sun in the zodiac constellation of Aquarius. 42 Aquarii is its Flamsteed designation. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 5.34. This object is moving further from the Sun with a heliocentric radial velocity of around +13 km/s.
60 Aquarii is a star located 375 light years away from the Sun in the equatorial constellation of Aquarius. 60 Aquarii is its Flamsteed designation. It is visible to the naked eye as a dim, yellow-hued star with an apparent visual magnitude of 5.89. The star is moving closer to the Earth with a heliocentric radial velocity of –8 km/s.
3 Cancri is a single star in the zodiac constellation of Cancer, located around 810 light years from the Sun. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 5.60. This object is moving further from the Earth with a heliocentric radial velocity of +39.5 km/s, and may be a member of the Hyades group. It is located near the ecliptic and thus is subject to lunar eclipses.
HD 175740 is a single star in the northern constellation of Lyra. This object has an orange hue and is dimly visible to the naked eye with an apparent visual magnitude of 5.46. It is located at a distance of approximately 266 light years from the Sun based on parallax, and has an absolute magnitude of 0.89. The star is drifting closer with a radial velocity of −9.5 km/s, and is predicted to come as close as 31.7 light-years in around 8 million years.
40 Camelopardalis is a single star in the northern circumpolar constellation of Camelopardalis, located around 600 light years distant from the Sun. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 5.37. This object is moving further from the Earth with a heliocentric radial velocity of +8.6 km/s.
27 Hydrae is a member of a triple star system system in the equatorial constellation of Hydra, located 222 light years away from the Sun. It is visible to the naked eye as a faint, orange-hued star with a combined apparent visual magnitude of 4.82. The system is moving further from the Earth with a heliocentric radial velocity of +25.6 km/s.
63 Cygni is a single star in the northern constellation of Cygnus, located around 1,030 light years away from Sun. It is visible to the naked eye as an orange-hued star with an apparent visual magnitude of 4.56. 63 Cyg is moving closer to the Earth with a heliocentric radial velocity of −26 km/s.
T Cygni is a binary star system in the northern constellation of Cygnus. It is a faint system but visible to the naked eye with a combined apparent visual magnitude of 4.93. Based upon an annual Parallax shift of 8.4 mas, it is located 387 light years away. It is moving closer to the Earth with a heliocentric radial velocity of −24 km/s.
HD 102350 is a single star in the constellation Centaurus. It has a yellow hue and is visible to the naked eye with an apparent visual magnitude of 4.11. The distance to this star is approximately 390 light years based on parallax, but it is drifting closer with a radial velocity of −3 km/s. It has an absolute magnitude of −1.51.
HD 211073 is a triple star system in the northern constellation Lacerta, located around 580 light years from the Sun. It is visible to the naked eye as a faint orange-hued star with a baseline apparent visual magnitude of 4.50. The system is moving closer to the Earth with a heliocentric radial velocity of −11.7 km/s.
3 Monocerotis is a binary star system in the equatorial constellation of Monoceros, located approximately 780 light years away from the Sun based on parallax. It is visible to the naked eye as a faint, blue-white hued star with a combined apparent visual magnitude of 4.92. The system is moving further from the Earth with a heliocentric radial velocity of +39 km/s.
Sigma Ophiuchi, Latinized from σ Ophiuchi, is a single, orange-hued star in the equatorial constellation Ophiuchus. Its apparent visual magnitude is 4.31, which is bright enough to be faintly visible to the naked eye. The annual parallax shift of 3.62 mas as seen from Earth provides a distance estimate of roughly 900 light years. It is moving closer to the Sun with a radial velocity of −28 km/s.
35 Pegasi is a single star in the northern constellation of Pegasus. It is visible to the naked eye as a faint, orange-hued point of light with an apparent visual magnitude of 4.80. The star is located approximately 155 light years away from the Sun based on parallax, and is drifting further away with a radial velocity of +54 km/s. The star has a relatively high proper motion, traversing the celestial sphere at the rate of 0.318 arc seconds per annum.
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.
V1073 Scorpii is a variable star in the constellation Scorpius. It has a non-Greek Bayer designation of k Scorpii. The star has a blue-white hue and is visible to the naked eye with an apparent visual magnitude that fluctuates around +4.87. Parallax measurements yield a distance estimate of approximately 2,920 ly (896 pc) from the Sun, and it is drifting further away with a radial velocity of +7 km/s. It has an absolute magnitude of −6.8
9 Persei is a single variable star in the northern constellation Perseus, located around 4,300 light years away from the Sun. It has the Bayer designation i Persei; 9 Persei is the Flamsteed designation. This body is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of about 5.2. It is moving closer to the Sun with a heliocentric radial velocity of −15.2 km/s. The star is a member of the Perseus OB1 association of co-moving stars.
71 Cygni is a star in the northern constellation of Cygnus, located 212 light years from the Sun. 71 Cygni is the Flamsteed designation; it has the Bayer designation g Cygni. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 5.22. The star is moving closer to the Earth with a heliocentric radial velocity of −21.5 km/s.
56 Cygni is a single star in the northern constellation of Cygnus, located 135 light years from Earth. It is visible to the naked eye as a white-hued star with an apparent visual magnitude of 5.06. The star is moving closer to the Earth with a heliocentric radial velocity of −21.5. It has a relatively high proper motion, traversing the celestial sphere at an angular rate of 0.181″/yr. According to Eggen (1998), this is a member of the Hyades Supercluster.