47 Boötis
47 Boötis
Jump to navigation
Jump to search
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
Constellation | Boötes |
Right ascension | 15h 05m 25.8345s |
Declination | +48° 09′ 03.501″ |
Apparent magnitude (V) | 5.581 |
| Characteristics | |
Spectral type | A1V |
| U−B color index | 0.0–0.07 |
| B−V color index | 0.0 |
Variable type | Variable star |
| Astrometry | |
| Radial velocity (Rv) | −13.0 km/s |
| Proper motion (μ) | RA: −65.26 mas/yr Dec.: 29.71 mas/yr |
| Parallax (π) | 12.55 ± 0.52 mas |
| Distance | 260 ± 10 ly (80 ± 3 pc) |
| Absolute magnitude (MV) | 5.577 |
| Details | |
| Mass | 3.1 M☉ |
| Radius | 2.1 R☉ |
| Luminosity | 40 L☉ |
| Temperature | 7,500–10,000 K |
| Rotation | 59 km/s 0.00494 year |
| Orbit | |
| Companion | CCDM 15054+4809 B |
| Semi-major axis (a) | 27″ |
| Inclination (i) | 202° |
| Other designations | |
k Boötis, HR 5627, HD 133962, BD+48°2262, FK5 1395, HIP 73841, SAO 45370, GC 20308, ADS 9500, CCDM 15054+4809. | |
| Database references | |
| SIMBAD | data |
47 Boötis or k Boötis is a binary star in the constellation Boötes. It is approximately 260 light years from Earth.
The primary component, 47 Boötis A, is a white A-type main sequence dwarf with an apparent magnitude of +5.59. The companion, 47 Boötis B, is a thirteenth magnitude star located 6.2 arcseconds away from the primary.
References[edit]
- HR 5627
- Image 47 Boötis
- CCDM J15054+4809
Components[edit]
| NAME | Right ascension | Declination | Apparent magnitude (V) | Spectral type | Database references |
|---|---|---|---|---|---|
| ADS 9500 B (BD+48 2262B) | 15h 05m 25.4s | +48° 08' 59 | 13.3 | Simbad |
 | This main-sequence-star-related article is a stub. You can help Wikipedia by expanding it. |
 | This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it. |
Categories:
- Boötes
- Binary stars
- A-type main-sequence stars
- Bayer objects
- Flamsteed objects
- Henry Draper Catalogue objects
- Hipparcos objects
- HR objects
- Durchmusterung objects
- Main-sequence-star stubs
- Multiple star stubs
(window.RLQ=window.RLQ||).push(function(){mw.config.set({"wgPageParseReport":{"limitreport":{"cputime":"0.288","walltime":"0.370","ppvisitednodes":{"value":958,"limit":1000000},"ppgeneratednodes":{"value":0,"limit":1500000},"postexpandincludesize":{"value":89199,"limit":2097152},"templateargumentsize":{"value":1543,"limit":2097152},"expansiondepth":{"value":14,"limit":40},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":0,"limit":5000000},"entityaccesscount":{"value":1,"limit":400},"timingprofile":["100.00% 218.666 1 -total"," 33.21% 72.630 1 Template:About-distinguish"," 16.32% 35.677 4 Template:Navbox"," 13.62% 29.791 1 Template:Stars_of_Boötes"," 13.13% 28.720 1 Template:Starbox_astrometry"," 10.03% 21.940 2 Template:ErrorBar2"," 8.02% 17.536 1 Template:Main-star-stub"," 8.00% 17.499 2 Template:Asbox"," 7.96% 17.399 4 Template:Rnd"," 7.40% 16.184 1 Template:Starbox_character"]},"scribunto":{"limitreport-timeusage":{"value":"0.071","limit":"10.000"},"limitreport-memusage":{"value":1863305,"limit":52428800}},"cachereport":{"origin":"mw1272","timestamp":"20181127095956","ttl":1900800,"transientcontent":false}}});mw.config.set({"wgBackendResponseTime":119,"wgHostname":"mw1245"});});
