d1Telescopii
| catalogues and names | d1Tel, HR 6934, HD 170465, SAO 229092 |
| constellation | Telescopium |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 18h 31min 45,4sec | DEC: -45° 54' 54'' |
| position (J1900) | RA: 18h 24min 20,9sec | DEC: -45° 58' 55'' |
| proper motion (J2000) | RA: -0,008 arcsec/a | DEC: -0,032 arcsec/a |
| radial velocity | 7 km/s note: spectroscopic binaries, single lined spectra note: orbital data avaible |
|
| rotational velocity | 33 km/s (uncertain) (variable) | |
magnitude
| visual magnitude | 4,96 (V on UBV Johnson system) |
spectral / color information
| spectral class | B6IV |
| B-V-magnitude | -0,11 |
| U-B-magnitude | -0,42 |
double/multiple star system information
| note (category: spectroscopic binaries): | 18.8456d, K 65k/s, V0 +7k/s, asini 14.5. |
miscellaneous information
| note (category: group membership): | Sco-Cen assoc. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 18h 31min 45,455sec | DEC: -45° 54' 53,35'' | ±0,19 arcsec | source: 16 |
| proper motion (J2000) | RA: 0 arcsec/a | DEC: -0,033 arcsec/a | source: 25 | |
| radial velocity | 7 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 349,06° | latitude: -15,93° | ||
| GCI unit vector (J2000) | X: 0,096098 | Y: -0,689058 | Z: -0,718306 | |
magnitude:
| visual | 4,96 (observed) | source: 25 |
| photovisual | 5 | source: 16 |
| photographic | 5 | source: 2 |
spectral information:
| spectral class | B8 | source: 96 | |
| Morgan-Keenan | B6IV | source: 25 | |
| B-magnitude | 4,85 ±0,05 | B-V-magnitude | -0,11 |
| U-magnitude | 4,43 ±0,05 | U-B-magnitude | -0,42 |
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 | |
| 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 | |
| 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: 18h 28min 3,189sec | DEC: -45° 57' 2,62'' | ±0,028 arcsec |
| position (J2000) | RA: 18h 31min 45,389sec | DEC: -45° 54' 53,8'' | |
| proper motion J1950 (FK4) | RA: -0,0007 arcsec/a | DEC: -0,03 arcsec/a | ±0,005 arcsec/a in RA ±0,005 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0,0008 arcsec/a | DEC: -0,032 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5 (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. |
catalogues
| source catalogue | GC, catalogue number: 25269 |
| Durchmusterung | CD-4512550 |
| Boss General Catalogue | 25269 |
| Henry Draper Catalogue | 170465 |