07230-2546 SEE 78 AB,E
07h 22m 58.33s -25° 46' 03.2" P.A. 31.00 sep 6.9 mag 9.50,15.00 Sp M3/4III dist. 229.89 pc (749.9 l.y.)
| Coord 2000 | 07230-2546 | Discov num | SEE 78 | Comp | AB,E | Coord arcsec 2000 | 07 22 58.33 -25 46 03.2 | ||||
| Date first | 1897 | Date last | 1900 | Obs | 2 | ||||||
| Pa first | 30 | Pa last | 30.5 | P.A. Now (θ) | 30.5° | ||||||
| Sep first | 6.9 | Sep last | 6.94 | Sep. Now (ρ) | 6.94" | ||||||
| Mag pri | 9.50 | Mag sec | 15.00 | delta mag (ΔM) | 5.5 | Spectral class | M3/4III (red) | ||||
| Pri motion ra | +001 | Sec motion ra | |||||||||
| Pri motion dec | -009 | Sec motion dec | |||||||||
| Notes | N (See Notes) | ||||||||||
07230-2546 SYSTEM COMPONENTS
| Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
| Show | 173591 | 07 22 58 -25 46 03 | B 719 AB | 2015 | 13 | 256 | 0.1 | 9.75 | 10.34 | 0.59 | |||
| Show | VY CMa | 173591 | 07 22 58 -25 46 03 | SEE 78 AB,C | 1970 | 8 | 290 | 2.6 | 9.50 | 14.80 | 5.30 | ||
| Show | 173591 | 07 22 58 -25 46 03 | SEE 78 AB,D | 1936 | 5 | 349 | 3.5 | 9.50 | 15.70 | 6.20 | |||
| Show | 173591 | 07 22 58 -25 46 03 | SEE 78 AB,E | 1900 | 2 | 31 | 6.9 | 9.50 | 15.00 | 5.50 | <=== | ||
| Show | 173591 | 07 22 58 -25 46 03 | SEE 78 AB,F | 1970 | 3 | 103 | 1.0 | 9.50 | 12.70 | 3.20 | |||
| Show | 173591 | 07 22 58 -25 46 03 | DAM 387 AG | 2015 | 2 | 9 | 41.7 | 9.75 | 12.84 | 3.09 | |||
| Show | 07 22 59 -25 45 22 | DAM 387 GH | 2015 | 3 | 140 | 4.1 | 15.00 | 15.90 | 0.90 |
9 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name | VY CMa | Constellation | Canis Major | SAO | 173591 | HIP | 35793 | ||||
| Tycho2 | 6541-02525-1 | Gaia DR2 | 5616197646838713728 | HD | 58061 | CD | CD-25 4441 | ||||
| CP | CP-25 2286 | Distance | 229.89 | Distance ly | 749.9 |
WDS 07230-2546 SEE 78 AB,E : NOTES
| discov_num | notes | refcode |
| B 719 | VY CMa. This multiple "star" is involved in nebulosity, shaped like | |
| the tail of a comet. All companions may be knots in the nebulosity, | ||
| and all may seem variable. | ||
| Adaptive optics imaging by Shenoy et al. (2013) in Ks, L', and M bands | ||
| suggest the brightness of the "Southwest Clump" (~1.5" from central | ||
| star) is almost entirely due to scattering from silicate dust grains. | ||
| Lower mass limit for this feature is 5 x 10^-3 to 2.5 x 10^-2 Msun, | ||
| depending on assumed gas-to-dust ratio. Presence of clump with no | ||
| apparent counterpart on other side of star suggests ejection event. | SDP2013 |
REFERENCES
| refcode | metd | author | reference |
| SDP2013 | A - | Shenoy, D.P., Jones, T.J., Humphreys, R.M., Marengo, M., Leisenring, J.M., | 2013AJ....146...90S |
| SDP2013 | Nelson, M.J., Wilson, J.C., Skrutskie, M.F., Hinz, P.M., Hoffmann, W.F., | ||
| SDP2013 | Bailey, V., Skemer, A., et al. | ||
| SDP2013 | AJ 146, 90, 2013 |
DISCOVERER
| idgroup | discov | author |
| 1 | B | van den Bos, W.H. |
| 212 | DAM | Damm, F. |
| 614 | SEE | See, T.J.J. |
WDS HISTORIC DATA
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 07230-2546 | SEE 78 | AB,E | 1900 | 2 | 31 | 6.9 | 9.50 | M3/4III | N | 072258.33-254603.2 |
If you need more information about this double, apply for a data request form to the WDS.
WDS 07230-2546 SEE 78 AB,E : VISUAL OBSERVATIONS REPORTS
WDS 07230-2546 SEE 78 AB,E : MEASURES
WDS 07230-2546 : VIRTUAL EYEPIECE
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WDS 07230-2546 : ALADIN DSS IMAGE @
Error -22130
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Error -27220
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