Coord 2000 | 21452+2914 | Discov num | UC 4550 | Comp | Coord arcsec 2000 | 21 45 10.80 +29 14 21.5 | |||||
Date first | 1999 | Date last | 2015 | Obs | 6 | ||||||
Pa first | 16 | Pa last | 14.5 | P.A. Now (θ) | 14.5° | ||||||
Sep first | 43.0 | Sep last | 42.512 | Sep. Now (ρ) | 42.512" | ||||||
Mag pri | 8.60 | Mag sec | 15.70 | delta mag (ΔM) | 7.1 | Spectral class | K2III (yellow-orange) | ||||
Pri motion ra | +058 | Sec motion ra | +054 | ||||||||
Pri motion dec | +018 | Sec motion dec | +004 | ||||||||
Notes | V (Proper motion indicates physical) |
Constellation | Cygnus | SAO | 89959 | Tycho2 | 2201-01090-1 | Gaia DR2 | 1801333065179073408 | ||||
HD | 206979 | DM | BD+28 4178 |
refcode | metd | author | reference |
UC | USNO CCD Astrographic Catalog (UCAC1, UCAC2, UCAC3, UCAC4) | ................... | |
UC_2013a | Eu j | Zacharias, N., Finch, C.T., Girard, T.M., Henden, A., Bartlett, J.L., Monet, D.G., | 2013AJ....145...44Z |
UC_2013a | & Zacharias, M.I. (UCAC4 Catalog) | ||
UC_2013a | AJ 145, 44, 2013 | ||
UC_2013b | Eu j | Hartkopf, W.I., Mason, B.D., Finch, C.T., Zacharias, N., Wycoff, G.L., & Hsu, D. | 2013AJ....146...76H |
UC_2013b | AJ 146, 76, 2013 (UC 301 - 5058) | ||
UC_2013b | (Relative astrometry is derived from individual measurements, not precessed means. | ||
UC_2013b | UCAC aperture magnitudes are listed, unless the duplicity flag indicates a blended | ||
UC_2013b | image (a flag value of 30 or higher). Model fit magnitudes are given for both | ||
UC_2013b | components if either has such a flag. Model fit magnitudes are indicated by the | ||
UC_2013b | letter "f" following the filter information. | ||
UC_2013b | APASS photometry extracted from UCAC4 catalog is listed under reference AAV2012. | ||
UC_2013b | Due to aperture method used, APASS photometry is only included for pairs wider | ||
UC_2013b | than 10" (Henden, private comm.) Photometry for pairs wider than 10" which showed | ||
UC_2013b | identical values for both components in all filters were removed, as well. | ||
UC_2015 | Eu - | Zacharias, N., Finch, C.T., Subasavage, J.P., Bredthauer, G., Crockett, C., | 2015AJ....150..101Z |
UC_2015 | DiVittorio, M., Ferguson, E., Harris, F., Harris, H.C., Hendon, A., Kilian, C., | ||
UC_2015 | Munn, J., Rafferty, T., Rhodes, A., Schultheis, M., Tilleman, T., & Wieder, G. | ||
UC_2015 | AJ 150, 101, 2015 | ||
UC_9999 | Eu - | temporary UCAC files | ................... |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
21452+2914 | UC 4550 | 2000 | 2 | 16 | 43.0 | 8.60 | 15.70 | V | 214510.80+291421.5 | ||
21452+2914 | UC 4550 | 2002 | 2 | 15 | 43.1 | 8.60 | 15.70 | V | 214510.80+291421.5 | ||
21452+2914 | UC 4550 | 2015 | 3 | 15 | 42.5 | 8.60 | 15.70 | K2III | V | 214510.80+291421.5 |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
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A | |
B | pa=12.7° sep=42.19" |
Componente originario normalizzato | AB | Coord arcsec 2000 | 214510.80+291421.5 | Mag | 8.6 | Spectral class | K2III (yellow-orange) | ||||
PmRA | 58.00 | PmDE | 18.0 | SAO | 89959 | Tycho2 | 2201-01090-1 | ||||
HD | 206979 | DM | BD+28 4178 |
Tycho2 | 2201-01090-1 | Pflag | RAmdeg | 326.29498687 | DEmdeg | 29.23931249 | |||||
PmRA | 57.9 | PmDE | 16.8 | E RAmdeg | 5 | E DEmdeg | 7 | ||||
E pmRA | 1.3 | E pmDE | 1.2 | EpRAm | 1991.55 | EpDEm | 1991.19 | ||||
Num | 9 | Q RAmdeg | 0.6 | Q DEmdeg | 0.9 | Q pmRA | 0.6 | ||||
Q pmDE | 0.8 | BTmag | 9.321 | E BTmag | 0.018 | VTmag | 7.987 | ||||
E VTmag | 0.011 | Prox | 999 | TYC | T | HIP | |||||
CCDM | RAdeg | 326.29483694 | DEdeg | 29.23927444 | EpRA 1990 | 1.87 | |||||
EpDE 1990 | 1.89 | E RAdeg | 5.2 | E DEdeg | 6.5 | Posflg | |||||
Corr | 0.1 |
SAO | 89959 | DelFlag | RA1950 | PmRA1950 | 0.0034 | ||||||
DE1950 | PmDE1950 | 0.015 | Vmag | 8 | SpType | K0 | |||||
Double code | Source | 34 | CatNum | 12856 | DM | BD+28 4178 | |||||
DMcomp | BDsup | HD | 206979 | M HD | 0 | ||||||
GC | RA1950rad | 5.68523304 | DE1950rad | 0.50628909 | PmRA2000 | 0.0035 | |||||
PmDE2000 | 0.011 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 214511.51+291502.7 | Mag | 15.7 | PmRA | 54.00 | ||||
PmDE | 4.0 | Calc delta mag | 7.1 | Calc coord | yes |