20397+2421 BKO 616
20h 39m 41.54s +24° 20' 47.6" P.A. 198.00 sep 3.7 mag 12.57,14.00
| Coord 2000 | 20397+2421 | Discov num | BKO 616 | Comp | Coord arcsec 2000 | 20 39 41.54 +24 20 47.6 | |||||
| Date first | 2008 | Date last | 2008 | Obs | 1 | ||||||
| Pa first | 198 | Pa last | 197.9 | P.A. Now (θ) | 197.9° | ||||||
| Sep first | 3.7 | Sep last | 3.68 | Sep. Now (ρ) | 3.68" | ||||||
| Mag pri | 12.57 | Mag sec | 14.00 | delta mag (ΔM) | 1.43 | Spectral class | |||||
| Pri motion ra | +018 | Sec motion ra | |||||||||
| Pri motion dec | +054 | Sec motion dec | |||||||||
| Notes | |||||||||||
OTHER CATALOGS AND DESIGNATIONS
| Constellation | Vulpecula | Gaia DR2 | 1843404056553218944 |
WDS 20397+2421 BKO 616 : NOTES
REFERENCES
| refcode | metd | author | reference |
| Bko2002 | C - | Ladanyi, T. & Berko, E. | ................... |
| Bko2002 | Webb Soc., Double Star Circ. 10, 2002 | ||
| Bko2003 | C u | Ladanyi, T., Berko, E. & Vaskuti, G | ................... |
| Bko2003 | Webb Soc., Double Star Circ. 11, 2003 | ||
| Bko2004 | C u | Berko, E., Ladanyi, T. & Vaskuti, G | ................... |
| Bko2004 | Webb Soc., Double Star Circ. 12, 2004 | ||
| Bko2005 | C u | Berko, E., Ladanyi, T. & Vaskuti, G | ................... |
| Bko2005 | Webb Soc., Double Star Circ. 13, 2005 | ||
| Bko2008 | C u | Berko, E. & Vaskuti, G. | ................... |
| Bko2008 | Webb Soc., Double Star Circ. 16, 2008 | ||
| Bko2008b | C u | Berko, E. | 2008JDSO....4..144B |
| Bko2008b | JDSO 4, 144, 2008 | ||
| Bko2009 | C u | Berko, E. | 2009JDSO....5...49B |
| Bko2009 | JDSO 5, 49, 2009 | ||
| Bko2009b | C u | Berko, E. | 2009JDSO....5..168B |
| Bko2009b | JDSO 5, 168, 2009 | ||
| Bko2009c | C u | Berko, E. | ................... |
| Bko2009c | Webb Soc., Double Star Circ. 17, 2009 | ||
| Bko2009d | C u | Berko, E. | 2009JDSO....5..189B |
| Bko2009d | JDSO 5, 189, 2009 | ||
| Bko2010a | C u | Berko, E. | 2010JDSO....6...21B |
| Bko2010a | JDSO 6, 21, 2010 | ||
| Bko2010b | C u | Berko, E. | ................... |
| Bko2010b | Webb Soc., Double Star Circ. 18, 2010 | ||
| Bko2011a | C u | Berko, E. | 2011JDSO....7....2B |
| Bko2011a | JDSO 7, 2, 2011 | ||
| Bko2011b | C u | Berko, E. | ................... |
| Bko2011b | Webb Soc., Double Star Circ. 19, 29, 2011 (BKO 898 - BKO 980) | ||
| Bko2011c | C u | Berko, E. | ................... |
| Bko2011c | Webb Soc., Double Star Circ. 19, 42, 2011 (BKO 981 - BKO1042) | ||
| Bko2012 | C u | Berko, E. | ................... |
| Bko2012 | Webb Soc., Double Star Circ. 20, 2012 |
WDS HISTORIC DATA
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20397+2421 | BKO 616 | 2008 | 1 | 198 | 3.7 | 12.57 | 14.00 | 203941.54+242047.6 |
If you need more information about this double, apply for a data request form to the WDS.
WDS 20397+2421 BKO 616 : VISUAL OBSERVATIONS REPORTS
WDS 20397+2421 BKO 616 : MEASURES
WDS 20397+2421 : VIRTUAL EYEPIECE
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WDS 20397+2421 : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
Not valid ID.
Error -27220
Not valid ID.