59 Serpentis

This article is about d Serpentis. Not to be confused with δ Serpentis.
59 Serpentis

A light curve for 59 Serpentis, plotted from Hipparcos data[1]
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Serpens
Right ascension 18h 27m 12.50775s[2]
Declination 00° 11′ 45.9912″[2]
Apparent magnitude (V) 5.17 – 5.29[3]
Characteristics
Spectral type A0Vs + G:III[2]
U−B color index +0.21[4]
B−V color index +0.48[4]
Variable type Irregular?[3]
Astrometry
Radial velocity (Rv)−23.3[5] km/s
Proper motion (μ) RA: −3.67[6] mas/yr
Dec.: −8.61[6] mas/yr
Parallax (π)6.95 ± 0.63 mas[6]
Distance470 ± 40 ly
(140 ± 10 pc)
Absolute magnitude (MV)−0.57[7]
Details
Aa
Mass6.32[8] M☉
Radius13[9] R☉
Temperature5,093[10] K
Age316[10] Myr
Ab1
Mass4.13[8] M☉
Radius2.2[9] R☉
Temperature9,700[9] K
Ab2
Mass3.39[8] M☉
Radius1.8[9] R☉
Temperature9,700[9] K
Ba
Mass3.17[8] M☉
Radius1.7[11] R☉
Luminosity10.1[11] L☉
Surface gravity (log g)4.28[11] cgs
Temperature7,981[11] K
Other designations
59 Ser, d Ser, HIP 90441, HR 6918, BD+00°3936, ADS 11353, CCDM J18272+0012
A: HD 169985
B: HD 169985
Database references
SIMBADdata
A
B

59 Serpentis, also known as d Serpentis, is a multiple star in the constellation Serpens.[2] The system shows irregular variations in brightness between magnitudes 5.17 and 5.29.[3]

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  2. ^ a b c d Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference 59AAVSO was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference UBV was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference GCRV was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference HIP was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference xhip was invoked but never defined (see the help page).
  8. ^ a b c d Cite error: The named reference msc was invoked but never defined (see the help page).
  9. ^ a b c d e Cite error: The named reference tilley1943 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference parsons2004 was invoked but never defined (see the help page).
  11. ^ a b c d Cite error: The named reference ticv8 was invoked but never defined (see the help page).