Kappa Apodis

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The Bayer designation Kappa Apodis (κ Aps / κ Apodis) is shared by two star systems, κ¹ Apodis and κ² Apodis, in the constellation Apus. They are separated by 0.63° on the sky.

1 κ¹ Apodis
2 Components of κ¹ Apodis
3 κ² Apodis
4 Components of κ² Apodis
5 Reference

[edit] κ¹ Apodis

**κ¹ Apodis**
Observation data Epoch J2000
κ¹ Apodis
Constellation (pronunciation)	Apus
Right ascension	15^h 31^m 30.8214^s
Declination	-73° 23′ 22.527″
Apparent magnitude (V)	5.49
Characteristics
Spectral type	B1npe
U-B color index	-0.77
B-V color index	-0.12
Astrometry
Radial velocity (R_v)	62 km/s
Proper motion (μ)	RA: 0.38 mas/yr Dec.: -18.28 mas/yr
Parallax (π)	3.2 ± 0.59 mas
Distance	approx. 1000 ly (approx. 310 pc)
Absolute magnitude (M_V)	5.37
Details
Mass	? M_☉
Radius	? R_☉
Luminosity	? L_☉
Temperature	? K
Metallicity	?
Rotation	?
Age	? years
Visual binary orbit
Companion	κ¹ Apodis B
Semimajor axis (a)	27"
Inclination (i)	255°
Other designations
HR 5730, HD 137387, CP-72°1802, FK5 567, HIP 76013, SAO 257289, GC 20801, CCDM 15315-7323.
Database references
SIMBAD	data

Kappa-1 Apodis is a binary star approximately 1020 light years from Earth. The primary component, κ¹ Apodis A, is a blue-white B-type subgiant with a mean apparent magnitude of +5.40. It is classified as a Gamma Cassiopeiae type variable star and its brightness varies from magnitude +5.43 to +5.61. The companion star, κ¹ Apodis B, is a 12th magnitude orange K-type subgiant. It is 27 arcseconds from the primary.

[edit] Components of κ¹ Apodis

NAME	Right ascension	Declination	Apparent magnitude (V)	Spectral type	Database references
κ¹ Apodis B (CPD-72 1802B)	15^h 31^m 24.7^s	-73° 23' 27	12.6	K5IV	Simbad

[edit] κ² Apodis

**κ² Apodis**
Observation data Epoch J2000
κ² Apodis
Constellation (pronunciation)	Apus
Right ascension	15^h 40^m 21.3328^s
Declination	-73° 26′ 48.066″
Apparent magnitude (V)	5.65
Characteristics
Spectral type	B7III-IV
U-B color index	-0.38
B-V color index	-0.04
Astrometry
Radial velocity (R_v)	-19 km/s
Proper motion (μ)	RA: -12.76 mas/yr Dec.: -20.73 mas/yr
Parallax (π)	4.44 ± 0.57 mas
Distance	approx. 730 ly (approx. 230 pc)
Absolute magnitude (M_V)	5.65
Details
Mass	3–4 M_☉
Radius	130 R_☉
Luminosity	1,900 L_☉
Temperature	3,350 K
Metallicity	?
Rotation	?
Age	? years
Visual binary orbit
Companion	κ² Apodis B
Semimajor axis (a)	15"
Inclination (i)	120°
Visual binary orbit
Companion	κ² Apodis C
Semimajor axis (a)	15"
Inclination (i)	0°
Other designations
HR 5782, HD 138800, CP-73°1625, HIP 76750, SAO 257307, GC 21003, CCDM 15404-7327.
Database references
SIMBAD	data

Kappa-2 Apodis is a binary star approximately 735 light years from Earth. The primary component, κ² Apodis A, is a blue-white B-type giant with an apparent magnitude of +5.64. Its companion, κ² Apodis B, is an orange K-type main sequence dwarf with an apparent magnitude of 12.5. It is 15 arcseconds away. Another 13th magnitude star 15 arcseconds away designated κ² Apodis C appears to be an optical companion.