NGC 5054

NGC 5054
Sketch and Details by Bertrand Laville

Hello,

Here is the contribution I propose this time. It is a galaxy presently well visible, and with a lot of structure. Interesting because never sketched, according my web searches.

My log is the following one: Observation of NGC 5054

Object information

Object name: NGC 5054
Object type: Galaxy
Magnitude: 10.90
RA: 13h 17m 30s
Dec: 16° 41′ 13″ S
Constellation: VIR

Observation details

Date of observation: 26 mars 2009 00:45 UT
Length of observation: 63 min
Object position: Alt: 29.4°, Az: 181.8°

Weather conditions: 11h: J++ V2-3NW t6.8° T1.5 01h25: N+/- V2N t6° hu49% QZ21.57 LZ 21.55
Observation conditions: SQMZ 21.57 SQM-LZ 21.55, naked eye limited magnitude in UMi~6.0, ~6.5at zenith. T2 P1.5 S4 (on scales 1/best to 5/worst)
Observing site: Puimoisson le PetitTelle (southern fench Alps, alt 700m)

Instrument: TN 635 Dobson Obsession
Main eyepiece: Televue Ethos 8mm
Barlow: (None)
Magnification: 390x
Notes: x102 Nagler 31mm

I am a bit disappointed: the galaxy is weak, little elongated, a/b ~ 2, pale blue, in a clear field.

x390 Ethos 8mm

It is the good power. The north-west spire is identified, then the north-east one, but the winding pattern is difficult.

PGC 46256 is easy, but only as a cigar without structure.

PGC 83913 is not visible.

More details on www.deepsky-drawings.com