V0412 Lacertae
catalogues and names
| catalogues and names | V0412 Lac, 5 Lac, HR 8572, HD 213310, SAO 52055, BD +46 3719, FK5: 3799, WDS 22295+4742 |
| constellation | Lacerta |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 22h 29min 31.8sec | DEC: +47° 42' 25'' | ||
| position (B1900) | RA: 22h 25min 21.7sec | DEC: +47° 11' 42'' | ||
| proper motion (J2000) | RA: 0.002 arcsec/a | DEC: 0 arcsec/a | ||
| radial velocity | -4 km/s note: spectroscopic binaries note: orbital data avaible |
|||
| rotational velocity | =<50 km/s (uncertain) (variable) | |||
| trigonometric parallax | 0.006 arcsec | |||
| galactic coordinates | longitude: 99.66° | latitude: -8.65° | ||
magnitude
| visual magnitude | 4.36 (V on UBV Johnson system) |
spectral / color information
| spectral class | M0II+B8V |
| B-V-magnitude | 1.68 |
| U-B-magnitude | 1.11 |
| R-I-magnitude | |
| IR-note | object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978) |
variability information
| variable star identification | 14177 |
double/multiple star system information
| note (category: spectroscopic binaries): | 41.95y, K 12.2k/s, V0 -3.4k/s, asini 2240. Unresolved by speckle interferometry. SKYLAB indicates cool star with hot companion. vsini of B-type component 90:k/s. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 22h 29min 31.869sec | DEC: +47° 42' 25.23'' | ±0.43 arcsec | source: 16 |
| proper motion (J2000) | RA: 0.0006 arcsec/a | DEC: 0.002 arcsec/a | source: 25 | |
| radial velocity | -4 km/s | source: 25 | ||
| trigonometric parallax | 0.006 arcsec | ±0.001 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 99.67° | latitude: -8.65° | ||
magnitude:
| visual | 4.36 (observed) | source: 25 |
| photovisual | 4.6 | source: 2 |
| photographic | 5.6 | source: 16 |
spectral information:
| spectral class | K0 | source: 96 | |
| Morgan-Keenan | M0II | source: 25 | |
| B-magnitude | 6.04 ±0.05 | B-V-magnitude | 1.68 |
| U-magnitude | 7.15 ±0.05 | U-B-magnitude | 1.11 |
double/multiple star system information:
| separation between brightest and second brightest component | 0.1 arcsec |
| position angle | 44 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 4.36 | K0 | 5 Lac, HR 8572, HD 213310, SAO 52055 |
| B | 4.324 | +++ |
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 | |
| 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: 22h 27min 26.535sec | DEC: +47° 27' 1.65'' | ±0.023 arcsec |
| position (J2000) | RA: 22h 29min 31.912sec | DEC: +47° 42' 24.63'' | |
| proper motion B1950 (FK4) | RA: 0.0003 arcsec/a | DEC: 0 arcsec/a | ±0.004 arcsec/a in RA ±0.003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0005 arcsec/a | DEC: -0.004 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 4.6 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | +++ |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 31426 |
| Durchmusterung | BD+46 3719 |
| Boss General Catalogue | 31426 |
| Henry Draper Catalogue | 213310 The "SAO Catalog" entry refers to two consecutive HD numbers, the lower of which is given. |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 22h 29.5min | DEC: +47° 42' |
| proper motion (J2000) | RA: 0.002 arcsec/a | DEC: 0 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 |
| - | 1978 | 11 | 44° | 0.1'' | 4.36 | - | M0II+B8V | MCA 71 |
discoverer information:
| discoverer code | discoverer | reference |
| MCA 71 | McAlister, H.A. | - |
notes:
| note | 5 Lac. A long-period (P = 41.95yr.) spectroscopic binary now resolved by interferometry. |