24 Cancri

No dss image available for 24 Cancri
 
Aladin viewer for the region around 24 Cancri
24 Cnc
Σ 1224, BD+25 1920, WDS J08267+2432, HIP 41389

Type  Multiple Star
Magnitude  6.4
Right Ascension  8h 26' 39.8"  (2000)
Declination  24° 32' 3" N
Constellation  Cancer
Description  Binary 6.9/7.5 4" @ 53°
Classification  F0V+F7V
Observing Notes

Captain William Henry Smyth
Mar 4, 1831    No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827

[Smyth's entry CCCXXI is clearly labeled υ1 Cnc while the coordinates given and description are that of 24 Cnc located 1° NW of υ1 Cnc]

A neat double star, on the Crab's northern middle leg; where a line carried from Sirius through Procyon, and extended rather more than as far again into the north-east, will reach it. A 7, pale white; B 7½, greyish. This fine object is composed of Nos. 65 and 66 of Piazzi's Hora VIII., and it is 41 ♅. II. By a comparison of these measures:
    ♅.        Pos. 57° 51'  Dist. 4".00  Ep. 1782.09
H. and S. 37° 47' 6".04 1822.12
[WDS 53° 5".70 2019 ]
it was inferred that a retrograde annual angular motion of -0°.514 had taken place. The subsequent observations, however, of Professor Struve, Sir John Herschel, and myself, afford no support to this supposed rotation; consequently some error must exist in ♅.'s register. And it should be remarked—albeit the process cannot demand implicit reliance—that a sifting of Piazzi's mean places for the mid-epoch, 1800, yields an angle =45° 30', and a distance of 5".2.
― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
Other Data Sources for 24 Cancri
Associated objects for 24 Cancri
Nearby objects for 24 Cancri
5 objects found within 60'
24 Cancri A 24 Cancri B 28 Cancri
IC 508 NGC 2575
Credits...

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

A complete list of credits and sources can be found on the about page

24 Cancri