HD 24733

HD 24733
Location of HD 24733 (circled)
Observation data
Epoch J2000[1]      Equinox J2000[1]
Constellation Camelopardalis
Right ascension 03h 58m 38.20939s
Declination +53° 59′ 19.2990″
Apparent magnitude (V) 7.038[2]
Characteristics
Spectral type A3V[3] + G0V[4]
B−V color index +0.22[1]
J−H color index +0.052[1]
J−K color index +0.090[1]
Variable type Beta Lyrae variable
Astrometry
Radial velocity (Rv)5.89 ± 9.72[5] km/s
Proper motion (μ) RA: 8.560[6] mas/yr
Dec.: -17.247[6] mas/yr
Parallax (π)5.3806 ± 0.0227 mas[6]
Distance606 ± 3 ly
(185.9 ± 0.8 pc)
Orbit[7]
PrimaryHD 24733 A
CompanionHD 24733 B
Period (P)1.762838 d[4]
Eccentricity (e)0.084±0.015
Inclination (i)67[4]°
Periastron epoch (T)2440489.71±0.04
Argument of periastron (ω)
(secondary)		94±8°
Details[8]
HD 24733 A
Mass1.60 M☉
Luminosity24.0 L☉
Temperature7160 K
Other designations
DD Cam, AG+53° 347, BD+53° 718, Gaia DR3 252190725755396864, GC 4764, HD 24733, HIP 18585, SAO 24324, PPM 28814, TIC 72528673, TYC 3717-534-1, GSC 03717-00534, 2MASS J03583820+5359193[1]
Database references
SIMBADdata

HD 24733 is a spectroscopic binary system that is also a Beta Lyrae variable[4] located about 606 light-years (186 parsecs) away in the deep northern constellation of Camelopardalis, close to the border with Perseus. It has the variable-star designation DD Camelopardalis (sometimes abbreviated to DD Cam). With a mean apparent magnitude of 7.038, it is too faint to be seen by the naked eye from Earth, but readily visible through binoculars.[9]

  1. ^ a b c d e Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Kervella2019 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Abt2009 was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference Szabados1997 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference DR3 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference EDR3 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Acker1971 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Reiners2020 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference bino was invoked but never defined (see the help page).