20167+3938 HO 590 AC
20h 16m 39.62s +39° 37' 43.4" P.A. 88.00 sep 25.9 mag 9.55,14.10 Sp A0IV
| Coord 2000 | 20167+3938 | Discov num | HO 590 | Comp | AC | Coord arcsec 2000 | 20 16 39.62 +39 37 43.4 | ||||
| Date first | 1895 | Date last | 2015 | Obs | 8 | ||||||
| Pa first | 83 | Pa last | 87.7 | P.A. Now (θ) | 87.7° | ||||||
| Sep first | 26.3 | Sep last | 25.929 | Sep. Now (ρ) | 25.929" | ||||||
| Mag pri | 9.55 | Mag sec | 14.10 | delta mag (ΔM) | 4.55 | Spectral class | A0IV (white) | ||||
| Pri motion ra | +003 | Sec motion ra | +001 | ||||||||
| Pri motion dec | +004 | Sec motion dec | -019 | ||||||||
| Notes | |||||||||||
20167+3938 SYSTEM COMPONENTS
| Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
| Show | 20 16 40 +39 37 43 | HO 590 AB | 2016 | 13 | 207 | 3.5 | 9.55 | 12.60 | 3.05 | ||||
| Show | 20 16 40 +39 37 43 | HO 590 AC | 2015 | 8 | 88 | 25.9 | 9.55 | 14.10 | 4.55 | <=== |
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation | Cygnus | Tycho2 | 3155-02114-1 | Gaia DR2 | 2062150692320606208 | HD | 228713 |
WDS 20167+3938 HO 590 AC : NOTES
REFERENCES
| refcode | metd | author | reference |
| Ho_1883 | Ma j | Hough, G.W. | 1883MNRAS..43..371H |
| Ho_1883 | MNRAS 43, 371, 1883 (data also in Ho_1890) | 1890AN....125....1H | |
| Ho_1884 | Ma j | Hough, G.W. | 1884MNRAS..44..365H |
| Ho_1884 | MNRAS 44, 365, 1884 (data also in Ho_1890) | 1890AN....125....1H | |
| Ho_1885 | Ma j | Hough, G.W. | 1885MNRAS..45..417H |
| Ho_1885 | MNRAS 45, 417, 1885 (data also in Ho_1890) | 1890AN....125....1H | |
| Ho_1886 | Ma j | Hough, G.W. | 1886MNRAS..46..393H |
| Ho_1886 | MNRAS 46, 393, 1886 (data also in Ho_1890) | 1890AN....125....1H | |
| Ho_1887 | Ma j | Hough, G.W. | 1887AN....116..273H |
| Ho_1887 | AN 116, 273, 1887 | ||
| Ho_1890 | Ma j | Hough, G.W. | 1890AN....125....1H |
| Ho_1890 | AN 125, 1, 1890 | ||
| Ho_1890b | Ma j | Hough, G.W. | 1890AJ......9..177H |
| Ho_1890b | AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b) | 1890AN....125....1H | |
| Ho_1894a | Ma - | Hough, G.W. | 1894MNRAS..54..251H |
| Ho_1894a | MNRAS 54, 251, 1894 | ||
| Ho_1894b | Ma j | Hough, G.W. (HO 304 - 490) | 1894AN....135..281H |
| Ho_1894b | AN 135, 281, 1894 | ||
| Ho_1894c | Ma - | Hough, G.W. (measure by Dembowski, H.) | 1894AN....135..281H |
| Ho_1894c | AN 135, 281, 1894 | ||
| Ho_1899a | Ma j | Hough, G.W. | 1899AN....149..65H |
| Ho_1899a | AN 149, 65, 1899 | ||
| Ho_1899b | Ma - | Hough, G.W. (measure by Burnham, S.W.) | 1899AN....149..65H |
| Ho_1899b | AN 149, 65, 1899 | ||
| Ho_1907 | Ma - | Hough, G.W. | 1907PFAO....3c...1D |
| Ho_1907 | Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle) | ||
| Ho_1932A | Ma - | Hough, G.W. | 1932QB821.A43...... |
| Ho_1932A | cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox) |
WDS HISTORIC DATA
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20167+3938 | HO 590 | AC | 1998 | 6 | 87 | 26.0 | 9.55 | 14.10 | D | 201639.62+393743.4 | |
| 20167+3938 | HO 590 | AC | 2002 | 7 | 87 | 25.9 | 9.55 | 14.10 | D | 201639.62+393743.4 | |
| 20167+3938 | HO 590 | AC | 2015 | 8 | 88 | 25.9 | 9.55 | 14.10 | A0IV | 201639.62+393743.4 |
If you need more information about this double, apply for a data request form to the WDS.
WDS 20167+3938 HO 590 AC : VISUAL OBSERVATIONS REPORTS
WDS 20167+3938 HO 590 AC : MEASURES
WDS 20167+3938 : VIRTUAL EYEPIECE
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WDS 20167+3938 : ALADIN DSS IMAGE @
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