Cursa


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 Cursa, b Eri, NSV 01841, 67 Eri, HR 1666, HD 33111, SAO 131794, FK5: 188, WDS 05078-0505
other names Dhalim, Kursa
constellation Eridanus

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

note (category: star names): Cursa; Dhalim; Kursa.

object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978)

position, motion, parallax:

position (J2000) RA: 5h 7min 51sec DEC: -5° 5' 11''
position (J1900) RA: 5h 2min 55,9sec DEC: -5° 12' 56''
proper motion (J2000) RA: -0,095 arcsec/a DEC: -0,081 arcsec/a
radial velocity -9 km/s
rotational velocity 179 km/s (uncertain) (variable)
trigonometric parallax 0,05 arcsec

magnitude

visual magnitude 2,79
(V on UBV Johnson system)

spectral / color information

spectral class A3III
B-V-magnitude 0,13
U-B-magnitude 0,1
R-I-magnitude 0,08

variability information

variable star identification 1841

double/multiple star system information

separation 116,7 arcsec
mag difference (of double or brightest multiple) 8
note Worley (1978) update of the IDS

miscellaneous information

note (category: group membership): Sirius group; UMa stream.

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

position, motion, parallax:

position (J2000) RA: 5h 7min 50,972sec DEC: -5° 5' 11,23'' ±0,06 arcsec source: 15
proper motion (J2000) RA: -0,0063 arcsec/a DEC: -0,081 arcsec/a source: 25
radial velocity -9 km/s source: 25
trigonometric parallax 0,05 ±0,005 arcsec source: 25
galactic coord. (B1950) longitude: 205,34° latitude: -25,31°
GCI unit vector (J2000) X: 0,224702 Y: 0,970386 Z: -0,088659

magnitude:

visual 2,79 (observed) source: 25
photovisual 2,9 source: 2
photographic 3 source: 2

spectral information:

spectral class A3 source: 96
Morgan-Keenan A3III source: 25
B-magnitude 2,92 ±0,05 B-V-magnitude 0,13
U-magnitude 3,02 ±0,05 U-B-magnitude 0,1

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 116,7 arcsec
magnitude difference between brightest and second brightest component 8,1
position angle 143 °

sources:

2 HD and HDE Catalogs
Cannon, A.J., and E.C. Pickering, Harvard Annals, Vols 91-99, 1918-24, Cambridge, Massachusetts: Harvard University; Cannon, A.J., Harvard Annals, Vol. 100, 1925-36, Cambridge, Massachusetts: Harvard University; and Cannon, A.J., and M. Walton Mayall, Harvard Annals, Vol. 112, 1949, Cambridge, Massachusetts: Harvard University
15 FK5, FK5 Extension and FK5 Supplement
Fricke, W., H. Schwan and T. Lederle, "Fifth Fundamental Catalogue (FK5), Part I. The Basic Fundamental Stars," Veroff. Astronomisches Recheninstitut, No. 32, Heidelberg, Germany, 1988, and Fricke, W., H. Schwan, and T.E. Corbin, "Fifth Fundamental Catalogue (FK5), Part II. The FK5 Extension," Veröff. Astronomisches Recheninstitut, No. 33, Heidelberg, Germany, 1991
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: 5h 5min 23,365sec DEC: -5° 8' 58,54'' ±0,004 arcsec
position (J2000) RA: 5h 7min 50,969sec DEC: -5° 5' 11,17''
proper motion J1950 (FK4) RA: -0,0067 arcsec/a DEC: -0,08 arcsec/a ±0,001 arcsec/a in RA
±0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0063 arcsec/a DEC: -0,08 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 2,9 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class A3
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 188
Durchmusterung BD-05 1162
Boss General Catalogue 6274
Henry Draper Catalogue 33111

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

position and proper motion:

position (J2000) RA: 5h 7,8min DEC: -5° 5'
proper motion (J2000) RA: -0,095 arcsec/a DEC: -0,081 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
- 1879 2 143° 116,7'' 2,79 10,9 A3III BUP 74

discoverer information:

discoverer code discoverer reference
BUP 74 - -

notes:

note Beta Eri.

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

position:

position (J1950) RA: 5h 5min 23,4sec DEC: -5° 8' 59''

variability informations:

magnitute at max. brightness 2,72
magnitute at min. brightness 2,8
photometric system visual, photovisual or Johnson's V

spectral information

spectral class A3

references

to a study 0807D (designation: 290G ERI)