Observer: Yann POTHIER (France)
Your skill: advanced (many years) Category: planetary nebula Constellation: PUP
Object data: Vmag=9.4; Bmag=10.8; 54"x22"; type V+III; central star of Vmag=18.9;
discovered by Herschel in 1790; ELCAT: [OIII, 496+501nm] = 20 x [Hbeta, 486nm].
RA/DE: 07h41.88m, -18°12.5' (2000.0) Date and UT of observation: 02 January 1995,
00h30UT Location & latitude: La Clapiere Obs. (France, latN44 40 00, longE06 27 36)
Site classification: rural, alt.1650m (5500ft) Limiting magnitude (visual in UMi): 6.0
Transparency (1 to 5 - best to worst): 1 Seeing (1 to 5 - best to worst): 3 Moon up no Instrument: Coulter 445mm/17.5" F/4.5 Magnification: 312x Filters used: OIII, UHC
Description: at 312x, medium sized PN, very bright, oval SW-NE, about 69"x38", with ill defined adges; brighter towards the center, very small and bright nucleus (smaller than 8"); a plume or elongated extension leaves the nucleus in a ENE direction (28"x9"); UHC provides a good contrast gain and OIII a very good one; at low powers, a bluish tint is obvious; a mag14 star is 20" from the S edge; a mag8.5 star is 4' to the E.