Observer: Yann POTHIER (France)
Your skill: advanced (many years) Category: planetary nebula
Constellation: AQL Object data: Vmag=11.9; Bmag=12.5; 21"x21"; type
III; central star of Vmag=15.4; discovered as a PN by Fleming in 1907;
ELCAT: [OIII, 496+501nm] = 17 x [Hbeta, 486nm]. RA/DE: 19h05.92m,
-05°59.6' (2000.0) Date and UT of observation: 09 July 1994, 00h00 UT
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 (phase?): no Instrument: Coulter 445mm/17.5"
F/4.5 Magnification: 45-145x Filters used: OIII
Description: at 45x, located as a nebulous mag13.5 star;
at 87x, nice,
specially with averted vision; brighter towards the center;
at 145x, small
PN, faint, homogeneous around a faint mag14 central star
visible only 50%
of the time, another star of similar brightness is 6"
from the E edge;
diameter estimated to be about 25"; a small group of
stars (10 members of
mag12-14 in a diam1.5' area) at 5'S may be taken for
NGC 6751 at low power.