NGC/IC Project Restoration Effort

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NGC6046

 

Basic Information


Location and Magnitude


Right Ascension: 16:1:29.1
Declination: +19:21:34
Constellation: HER
Visual Magnitude: 13.5

Historic Information


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

Observational


Summary description: eF, pL, partly verified
Sub-type: S0-a

Corwin's Notes

===== NGC 6046 = NGC 6028. WH's RA is 3 minutes 20 seconds of time too large. Re-reducing his observation reduces the error to 3 minutes of time. Since the NGC position is copied correctly from the GC, the 20-second error is probably a reduction error of some sort. The larger 3-minute error could be a clock- reading or transcription error. Fortunately, Dreyer gives WH's complete description in a note in the Scientific Papers: "A neb suspected by 157 and the suspicion strengthened by 240, but the latter power does not remove all doubt. It follows 3 pB stars making an arch [concave towards np or nnp direction by a diagram]{Dreyer's comment}, south of which arch there is a still brighter star." Dreyer probably gave the whole description since Bigourdan twice searched unsuccessfully for WH's nebula. The arch is there, but is concave toward the northeast. The "still brighter star" to the south is SAO 101676. The configuration is so striking that there is no doubt about the identification.

Steve's Notes

===== NGC 6046 See observing notes for NGC 6028.