R Car


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 (Vol. I-III)


catalogues and names R Car, HR 3816, HD 82901, SAO 250614, WDS 09322-6247

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


object is infrared source (uncertain identification)

position, motion, parallax:

position (J2000) RA: 9h 32min 14,6sec DEC: -62 47' 20''
position (J1900) RA: 9h 29min 43,6sec DEC: -62 20' 46''
proper motion (J2000) RA: -0,036 arcsec/a DEC: 0,02 arcsec/a
radial velocity 28 km/s
note: variable radial velocity

magnitude

visual magnitude 6,1
(V on UBV Johnson system)

spectral / color information

spectral class M6-7IIIep
B-V-magnitude 1,43
U-B-magnitude 0,23
R-I-magnitude 2,51
note (category: spectra): Also classified M4e-M8e.

variability information

variable star identification R Car
note (category: variability): Component A of visual double. M 3.9 - 10.1v, 308.71d.

double/multiple star system information

separation 2,1 arcsec
mag difference (of double or brightest multiple) 7,3
note Worley (1978) update of the IDS

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

position, motion, parallax:

position (J2000) RA: 9h 32min 14,518sec DEC: -62 47' 19,63'' 0,19 arcsec source: 16
proper motion (J2000) RA: -0,0073 arcsec/a DEC: 0,033 arcsec/a source: 25
radial velocity 28 km/s source: 25
galactic coord. (B1950) longitude: 282,27 latitude: -8,21
GCI unit vector (J2000) X: -0,365484 Y: 0,274807 Z: -0,889327

magnitude:

visual 6,1 (observed) source: 25
photovisual 7,5 source: 16

spectral information:

spectral class M0 source: 96
Morgan-Keenan M6-7IIIep source: 25
B-magnitude 7,53 0,05 B-V-magnitude 1,43
U-magnitude 7,76 0,05 U-B-magnitude 0,23

variability information:

source of data: 30
variability type 180
var. amplitude 6,6
var. period 308,71
var. epoch 2442000
13. November 1973, 12:00:00 UT
next max light 2451878,72
30. November 2000, 05:16:48 UT

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 2 arcsec
position angle 137

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
30 GCVS, 4th edition
Kholopov, P.N., et al., General Catalogue of Variable Stars, fourth edition, Moscow: Nauka Publishing House, 1985-88
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: 9h 30min 59,21sec DEC: -62 34' 1,09'' 0,033 arcsec
position (J2000) RA: 9h 32min 14,644sec DEC: -62 47' 19,71''
proper motion J1950 (FK4) RA: -0,0049 arcsec/a DEC: 0,017 arcsec/a 0,008 arcsec/a in RA
0,007 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0052 arcsec/a DEC: 0,02 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4 (accuracy: 1 decimal)
source of visual magnitude data Source cited in source catalog introduction.

spectral information:

spectral class M5e
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

remarks for duplicity and variability

Variable star in visual magnitude in source catalog

catalogues

source catalogue GC, catalogue number: 13192
Durchmusterung CP-62 1253
Boss General Catalogue 13192
Henry Draper Catalogue 82901

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

position and proper motion:

position (J2000) RA: 9h 32,2min DEC: -62 47'
proper motion (J2000) RA: -0,047 arcsec/a DEC: 0,017 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
- 1929 6 137 2'' - 11,3 M6-7IIIe FIN 140

discoverer information:

discoverer code discoverer reference
FIN 140 Finsen, W.S. -

notes:

note A is a Mira-type variable, R Car.

data from Combined General Catalogue of Variable Stars (Vol. I-III) (Kholopov+ 1998)

position:

position (J1950) RA: 9h 30min 59,2sec DEC: -62 34' 1''

variability informations:

variability type M pulsating variable star
magnitute at max. brightness 3,9
magnitute at min. brightness 10,5
photometric system visual, photovisual or Johnson's V
epoch for maximum light [JD] 2442000
13. November 1973, 12:00:00 UT
period [d] 308,71
next maximum light [JD] 2451878,72
30. November 2000, 05:16:48 UT
rising time 48 % of period

spectral information

spectral class M4e-M8e

references

to a study the main characteristics of the star was determined by the authors themselves
to a chart/photograph Vol. I GCVS (see Kholopov et al. 1985-1988)

miscanellous

ID in the GCVS catalogue 17/1
constellation Carina
notes on existence The star is equivalent to '0170002 S'.
There are notes in published catalog.

variability type description

variability type description
M Mira (Omicron) Ceti-type variables. These are long-period variable giants with characteristic late-type emission spectra (Me, Ce, Se) and light amplitudes from 2.5 to 11 mag in V. Their periodicity is well pronounced, and the periods lie in the range between 80 and 1000 days. Infrared amplitudes are usually less than in the visible and may be <2.5 mag. For example, in the K band they
usually do not exceed 0.9 mag. If the amplitudes exceed 1 - 1.5 mag , but it is not certain that the true light amplitude exceeds 2.5 mag, the symbol "M" is followed by a colon, or the star is attributed to the semiregular class with a colon following the symbol for that type (SR).