CH Crucis

CH Crucis
Observation data Epoch J2000 Equinox J2000
Constellation	Crux
Right ascension	12^h 41^m 56.6^s
Declination	−59° 41′ 08.9″
Apparent magnitude (V)	4.91
Characteristics
Spectral type	B6IVe^[1]
U−B color index	-0.37^[1]
B−V color index	-0.04^[1]
Astrometry

Radial velocity (R_v)	12.50 ± 2.80^[1] km/s
Proper motion (μ)	RA: -24.66 ± 0.18^[1] mas/yr Dec.: -3.66 ± 0.18^[1] mas/yr
Parallax (π)	3.41 ± 0.25^[1] mas
Distance	1034^[2] ly (317.1^[2] pc)
Absolute magnitude (M_V)	-2.60

Details

Mass	7.0^[2] M_☉
Radius	8.1^[2] R_☉
Luminosity	2400^[2] L_☉
Temperature	14200^[2] K
Age	120 Myr

Other designations
39 G. Crucis, HD110335, HIP61966, HR4823, SAO240161, CP-59°4393

CH Crucis (39 G.Crucis) is a Be star, while also a B-type subgiant in the constellation Crux. This star is not to be confused with 39 Crucis/ 39 Cru.

References

1 2 3 4 5 6 7 "39 Crucis, a blue subgiant star in Crux", Ashland Astronomy Studio, retrieved 2012-08-23
1 2 3 4 5 6 "HIP 61966", Wolfram Alpha, retrieved 2012-08-23

Bayer	α (Acrux) β (Mimosa) γ (Gacrux) δ ε ζ η θ¹ θ² ι κ λ μ

Variable	R S T V W X AB AG AI BG BH BI BL BP BU BZ CD CH DL DS DU

HR	4573 4576 4578 4592 4607 4622 4634 4644 4702 4706 4729 4736 4744 4747 4749 4754 4771 4790 4832 4834 4835 4848 4887 4908

HD	104111 104900 106906 108147 108395

Other	NGC 4349-127 PSR B1259-63/LS 2883 3U 1223-62 WR 46 WR 47

Association	Dragonfish association

Open	Jewel Box NGC 4052 NGC 4103 NGC 4184 NGC 4337 NGC 4349 NGC 4439 NGC 4609

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