h Piscis Austrini

The object was found in the following catalogues:
  1. The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version)

  2. SKY2000 - Master Star Catalog

  3. Smithsonian Astrophysical Observatory Star Catalog

  4. The Washington Visual Double Star Catalog, 1996.0

  5. Combined General Catalogue of Variable Stars (suspected variables)

catalogues and names h PsA, NSV 13993, 12 PsA, HR 8386, HD 209014, SAO 190822, WDS 22008-2827
constellation Piscis Austrinus

data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)


position, motion, parallax:

position (J2000) RA: 22h 0min 50,2sec DEC: -28° 27' 13''
position (J1900) RA: 21h 55min 5,6sec DEC: -28° 56' 1''
proper motion (J2000) RA: 0,016 arcsec/a DEC: 0,006 arcsec/a
radial velocity -5 km/s
note: variable radial velocity
dynamical parallax 0,011 arcsec

magnitude

visual magnitude 5,42
(V on UBV Johnson system)

spectral / color information

spectral class B8V
B-V-magnitude -0,09
U-B-magnitude -0,37
R-I-magnitude -0,07
note (category: spectra): Shell star. H alpha emission.

variability information

variable star identification 13993

double/multiple star system information

separation 1,9 arcsec
mag difference (of double or brightest multiple) 1

data from SKY2000 - Master Star Catalog (Myers+ 1997)

position, motion, parallax:

position (J2000) RA: 22h 0min 50,247sec DEC: -28° 27' 13,85'' ±0,19 arcsec source: 16
proper motion (J2000) RA: 0,0008 arcsec/a DEC: -0,005 arcsec/a source: 25
radial velocity -5 km/s source: 25
galactic coord. (B1950) longitude: 20,71° latitude: -52,44°
GCI unit vector (J2000) X: 0,763012 Y: -0,436815 Z: -0,476451

magnitude:

visual 5,42 (observed) source: 25
photovisual 5,5 source: 16

spectral information:

spectral class B8 source: 96
Morgan-Keenan B8V source: 25
B-magnitude 5,33 ±0,05 B-V-magnitude -0,09
U-magnitude 4,96 ±0,05 U-B-magnitude -0,37

variability information:

source of data: 28
variability type 9
var. amplitude 0,11

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 1,9 arcsec
magnitude difference between brightest and second brightest component 1
position angle 115 °

sources:

16 PPM North and PPM South Catalogs and PPM Supplement
Roser, S., and U. Bastian, "Catalogue of Positions and Proper Motions," A&AS, Vol. 74, p. 449, 1988, and Bastian, U., et al., "Catalogue of Positions and Proper Motions - South," 1993
19 WDS Catalog
Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996
25 Bright Star Catalogue, 5th edition
Hoffleit, D. and Warren, W.H. Jr., The Bright Star Catalogue, 5th Revised Edition, Version 2, 1994
96 SAO or HD/HDE Catalog
Reference from Value 1 or Reference from Value 2

data from Smithsonian Astrophysical Observatory Star Catalog (SAO Staff 1966; USNO, ADC 1990)

position and proper motion:

position (J1950) RA: 21h 57min 58,127sec DEC: -28° 41' 39,91'' ±0,02 arcsec
position (J2000) RA: 22h 0min 50,239sec DEC: -28° 27' 12,76''
proper motion J1950 (FK4) RA: 0,0013 arcsec/a DEC: 0,01 arcsec/a ±0,003 arcsec/a in RA
±0,004 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0012 arcsec/a DEC: 0,007 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 5,4 (accuracy: 2 decimals)
source of visual magnitude data Taken from Harvard or San Luis photometry.

spectral information:

spectral class B8
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

remarks for duplicity and variability

Double star in Aitken's Double Star Catalogue (Aitken 1932)

catalogues

source catalogue GC, catalogue number: 30785
Durchmusterung CD-2918119
Boss General Catalogue 30785
Henry Draper Catalogue 209014

data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)

position and proper motion:

position (J2000) RA: 22h 0,8min DEC: -28° 27'
proper motion (J2000) RA: 0,021 arcsec/a DEC: -0,003 arcsec/a

double/multiple star system information:

component year number of measures position angle angular separation magnitude of 1st component magnitude of 2nd component spectral class(es) discoverer code
- 1876 49 115° 1,7'' 5,8 6,8 B8Ve BU 276
1970 - 1,9''

discoverer information:

discoverer code discoverer reference
BU 276 Burnham, S.W. -

notes:

note Eta PsA. Bidelman calls A a spectroscopic binary, and says a 1972 plate shows a fairly strong H-alpha self- reversal.

data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)

position:

position (J1950) RA: 21h 57min 58,1sec DEC: -28° 41' 40''

variability informations:

magnitute at max. brightness 5,33
magnitute at min. brightness 5,44
photometric system visual, photovisual or Johnson's V

spectral information

spectral class B8

references

to a study 681335D (designation: HR 8386)

miscanellous

There are notes in the published catalog (Kukarkin et al.(1982)).