V1466 Aquilae
catalogues and names
| catalogues and names | V1466 Aql, HR 7572, HD 187961, SAO 105355, BD +9 4295, WDS 19523+1021 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 19h 52min 15.6sec | DEC: +10° 21' 5'' | ||
| position (B1900) | RA: 19h 47min 29.5sec | DEC: +10° 5' 42'' | ||
| proper motion (J2000) | RA: 0.004 arcsec/a | DEC: -0.015 arcsec/a | ||
| radial velocity | -13 km/s | |||
| rotational velocity | 300 km/s (uncertain) (variable) | |||
| galactic coordinates | longitude: 49.23° | latitude: -8.49° | ||
magnitude
| visual magnitude | 6.54 (V on UBV Johnson system) |
spectral / color information
| spectral class | B7V |
| B-V-magnitude | -0.01 |
| U-B-magnitude | -0.38 |
variability information
| variable star identification | 12496 |
double/multiple star system information
| number of components of multiple star system | 4 |
| separation | 13.5 arcsec |
| mag difference (of double or brightest multiple) | 4 |
| component ID | AB |
| note (category: double and multiple data): | Component B = A3V. |
miscellaneous information
| note (category: group membership): | Member of the local association (Pleiades group). |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 19h 52min 15.597sec | DEC: +10° 21' 6.04'' | ±0.35 arcsec | source: 17 |
| proper motion (J2000) | RA: 0 arcsec/a | DEC: -0.006 arcsec/a | source: 25 | |
| radial velocity | -13 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 49.24° | latitude: -8.49° | ||
magnitude:
| visual | 6.54 (observed) | source: 25 |
| photovisual | 6.5 | source: 2 |
| photographic | 6.6 | source: 16 |
spectral information:
| spectral class | B5 | source: 96 | |
| Morgan-Keenan | B7V | source: 25 | |
| B-magnitude | 6.53 ±0.05 | B-V-magnitude | -0.01 |
| U-magnitude | 6.15 ±0.05 | U-B-magnitude | -0.38 |
double/multiple star system information:
| separation between brightest and second brightest component | 13.5 arcsec |
| magnitude difference between brightest and second brightest component | 3.95 |
| position angle | 309 ° |
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 | |
| 17 | ACRS |
| Corbin, T.E., and S.E. Urban, Astrographic Catalog Reference Stars, United States Naval Observatory, 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 (B1950) | RA: 19h 49min 52.544sec | DEC: +10° 13' 18.97'' | ±0.042 arcsec |
| position (J2000) | RA: 19h 52min 15.608sec | DEC: +10° 21' 5.1'' | |
| proper motion B1950 (FK4) | RA: 0.0001 arcsec/a | DEC: -0.013 arcsec/a | ±0.006 arcsec/a in RA ±0.005 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0002 arcsec/a | DEC: -0.015 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 6.5 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | B5 |
| 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: 27515 |
| Durchmusterung | BD+09 4295 |
| Boss General Catalogue | 27515 |
| Henry Draper Catalogue | 187961 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 19h 52.3min | DEC: +10° 21' |
| proper motion (J2000) | RA: 0 arcsec/a | DEC: -0.006 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 |
| - | 1830 | 10 | 309° | 13.5'' | 6.59 | 10.54 | B7V | STF2590 |
| ab | 1909 | 1 | 272° | 6.6'' | 11.6 | 12.2 | - | STF2590 |
discoverer information:
| discoverer code | discoverer | reference |
| STF2590 | Struve, F.G.W. | - |
notes:
| note | AB: Also called J 126. ab: A faint pair 6s p, 2' n of STF 2590. |