NGC/IC Project Restoration Effort

(This is a very very beta version)

NGC5747

 

Basic Information


Location and Magnitude


Right Ascension: 14:44:20.7
Declination: +12:7:55
Constellation: BOO
Visual Magnitude: 13.6

Historic Information


Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7

Observational


Summary description: eF, S
Sub-type: Sb

Corwin's Notes

===== NGC 5747 = IC 4493. WH's single discovery observation is about 50 seconds of time too far east. Bigourdan looked for NGC 5747 at WH's position and of course saw nothing. He did find the object, however, and measured it twice. He included it in his 4th list of new nebulae, so it received a number in the second IC. Herschel's note on the object, quoted by Dreyer in the 1912 reprinting of Herschel's papers, reads, "An extremely faint nebula, it is small and required some time to look at before it could be well seen." This helps to explain the position error, but errors of this size are not uncommon in others of WH's observations. The object itself is a double interacting system. The two galaxies are so closely connected that I've adopted a mean position for the NGC/IC numbers.

Steve's Notes

===== NGC 5747 17.5" (6/20/01): fairly faint, small, round, 40" diameter, weak concentration. A mag 14 star lies 0.9' WNW of center while a brighter mag 12.5 star follows by 3.5'.