rho Puppis

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

note (category: star names):

Called Iota Pup in Argelander's atlas, and in Bayer.

position, motion, parallax:

position (J2000)	RA: 8h 7min 32.6sec	DEC: -24° 18' 15''
position (2000.73)	RA: 8h 7min 35sec	DEC: -24° 18' 23''
position (B1900)	RA: 8h 3min 17.1sec	DEC: -24° 0' 57''
proper motion (J2000)	RA: -0.083 arcsec/a	DEC: 0.049 arcsec/a
radial velocity	46 km/s note: spectroscopic binaries
rotational velocity	14 km/s (uncertain) (variable)
trigonometric parallax	0.035 arcsec
galactic coordinates	longitude: 243.15°	latitude: 4.4°

magnitude

visual magnitude

2.81
(V on UBV Johnson system)

spectral / color information

spectral class	F6IIpDel Del
B-V-magnitude	0.43
U-B-magnitude	0.19
R-I-magnitude
IR-note	object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978)

note (category: spectra):

High Fe abundance. Violet shifted CaII K emission at some phase of light curve.

variability information

variable star identification

Rho Pup

note (category: variability):

Delta Sct 2.68 - 2.78v, 0.14088143d.

double/multiple star system information

separation	29.6 arcsec
mag difference (of double or brightest multiple)	10.9
note	Worley (1978) update of the IDS

note (category: spectroscopic binaries):

0.14088143d over 60 yr. interval.

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

position, motion, parallax:

position (J2000)	RA: 8h 7min 32.645sec	DEC: -24° 18' 15.45''	ą0.06 arcsec	source: 15
position (2000.73)	RA: 8h 7min 35sec	DEC: -24° 18' 23''	JD: 2451810.88
proper motion (J2000)	RA: -0.0061 arcsec/a	DEC: 0.049 arcsec/a		source: 25
radial velocity	46 km/s			source: 25
trigonometric parallax	0.035 arcsec		ą0.003 arcsec	source: 25
galactic coord. (B1950)	longitude: 243.15°	latitude: 4.4°

magnitude:

visual	2.68 (observed)	source: 30
photovisual	2.9	source: 2
photographic	3.3	source: 2

spectral information:

spectral class	F5		source: 96
Morgan-Keenan	F6IIpDeltaDel		source: 25
B-magnitude	3.24 ą0.05	B-V-magnitude	0.43
U-magnitude	3.43 ą0.05	U-B-magnitude	0.19

variability information:

source of data: 30

variability type	150
var. amplitude	0.19
var. period	0.14
var. epoch	2444996 26. January 1982, 12:00:00 UT
next max light	2451810.92 23. September 2000, 10:04:48 UT

double/multiple star system information:

source of data: 19

separation between brightest and second brightest component	29.1 arcsec
magnitude difference between brightest and second brightest component	11
position angle	15 °

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
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 (B1950)	RA: 8h 5min 24.821sec	DEC: -24° 9' 32.3''	ą0.004 arcsec
position (2000.73)	RA: 8h 7min 35sec	DEC: -24° 18' 25''	JD: 2451810.88
position (J2000)	RA: 8h 7min 32.644sec	DEC: -24° 18' 15.21''
proper motion B1950 (FK4)	RA: -0.0064 arcsec/a	DEC: 0.048 arcsec/a	ą0.001 arcsec/a in RA ą0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0061 arcsec/a	DEC: 0.051 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	F5
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	FK4, catalogue number: 308
Durchmusterung	CD-23 6828
Boss General Catalogue	11034
Henry Draper Catalogue	67523

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

position and proper motion:

position (J2000)	RA: 8h 7.5min	DEC: -24° 18'
proper motion (J2000)	RA: -0.083 arcsec/a	DEC: 0.049 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
-	1947	1	15°	29.1''	2.81	13.8	F6IIp	RST5284

discoverer information:

discoverer code	discoverer	reference
RST5284	Rossiter, R.A.	-

notes:

note	Rho Pup. A is a Delta Scuti-type variable.

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

position:

position (equinox 1950.0)

RA: 8h 5min 24.8sec

DEC: -24° 9' 32''

variability informations:

variability type	DSCT	pulsating variable star
magnitute at max. brightness	2.68
magnitute at min. brightness	2.87
photometric system	visual, photovisual or Johnson's V
epoch for maximum light [JD]	2444995.905 26. January 1982, 09:43:12 UT
period [d]	0.1408809
next maximum light [JD]	2451811.0185375 23. September 2000, 12:26:42 UT
rising time	48 % of period

spectral information

spectral class

F6IIp

references

to a study	Vol. III GCVS
to a chart/photograph	Vol. I GCVS (see Kholopov et al. 1985-1988)

miscanellous

ID in the GCVS catalogue	68/9017
constellation	Puppis
notes on existence	The star is equivalent to '06892122L 2'.
There are notes in published catalog.

variability type description

variability type

description

DSCT

Variables of the Delta Scuti type. These are pulsating variables of spectral types A0-F5 III-V displaying light amplitudes from 0.003 to 0.9 mag in V (usually several hundredths of a magnitude) and periods from 0.01 to 0.2 days. The shapes of the light curves, periods, and amplitudes usually vary greatly. Radial as well as nonradial pulsations are observed. The variability of some
members of this type appears sporadically and sometimes completely ceases, this being a consequence of strong amplitude modulation with the lower value of the amplitude not exceeding 0.001 mag in some cases. The maximum of the surface layer expansion does not lag behind the maximum light for more than 0.1 periods. DSCT stars are representatives of the galactic disk (flat component) and are phenomenologically close to the SX Phe variables.

DSCTC
Low amplitude group of Delta Sct variables (light amplitude <0.1 mag in V). The majority of this type's representatives are stars of luminosity class V; objects of this subtype generally are representative of the Delta Sct variables in open clusters.

catalogues and names	r Pup, rho Pup, 15 Pup, HR 3185, HD 67523, SAO 175217, CD -23 6828, FK5: 308, WDS 08075-2418
constellation	Puppis