(IAAC) NGC 2610 - 17.5" F/4.5

Observer: Yann POTHIER (France)
Your skill: advanced (many years)
Object: NGC 2610 (PK 239+13.1; PN G239.6+13.9; ARO 64; Sa 2-27)
Category: planetary nebula
Constellation: HYA
Object data: Vmag=12.7; Bmag=13.6; 38"x31"; type IV+II; central star of
Vmag=15.9; discovered by W. Herschel; ELCAT: [OIII, 496+501nm] = 5 x
[Hbeta, 486nm].
RA/DE: 08h33.40m, -1609.0' (2000.0)
Date and UT of observation: 27 December 1994, about 02h00UT
Location & latitude: La Clapiere Obs. (France, latN44 40 00, longE06 27 36)
Site classification: rural, alt.1650m (5500ft)
Limiting magnitude (visual in UMi): 6.3
Transparency (1 to 5 - best to worst): 1
Seeing (1 to 5 - best to worst): 4
Moon up (phase?): no
Instrument: Coulter 445mm/17.5" F/4.5
Magnification: 312-620x
Filters used: OIII, UHC
Description: at 312x, small to medium PN, faint to medium brightness, oval
about 42"x38" in a SW-NE axis, soft edges; seen at 45x without filter and
even at 620x; center very slightly fainter; OIII and UHC filters are
providing a small contrast gain [see ELCAT data above]; well seen without
filter; evident greenish color; a mag13 is just outside the NNE border; a
mag7 star is at 3.1'NE.
I can provide a scanned drawing of NGC 2610 to anyone who can read the
binhex encoding of Eudora (for Mac); just mail me to try
(yann.pothier@fnac.net), it works quite often with other configurations...
Yann Pothier
11 impasse Canart, 75012 PARIS, FRANCE
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