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Re: (IAAC) NGC 7354 - 8" F/10



Yann

Thanks for these postings. I have drummed up a few observations of this 
one and it is interesting to hear about the differences that people are 
seeing. The contrast between established "standard" astronomical 
sources and these newer ones.

I have drafted a interesting article that I will distribute among those 
in the Yahoo! Planetary Nebula Group. This will be finished hopefully 
in the next few days.

Again thank you for your usually excellent and precise reports.

Regards and Clear Skies.

Andrew James

********************


On 23/02/2004, at 06:46 PM, Yann POTHIER wrote:

> Observer: Yann POTHIER (France)
> Your skill: advanced (many years)
> Object: NGC 7354, PK 107+02.1, PN G107.8+02.3, Iras22384+6101, ARO 55
> Category: planetary nebula
> Constellation: CEP
> Object data: Vmag=12.2, Bmag=12.9, diam.32", type IIIb+IV, central
> star of Vmag=16.1, uranometria chart 58; discovered by Rosse in 1862;
> ELCAT: OIII [496+501nm] = 17 x Hbeta [486nm].
> RA/DE: 22h40m20s, +6117'05" (2000.0)
> Date and UT of observation: 26 October 1992, 20h00 UT
> Location & latitude: La Clapiere Obs. (France, latN44 40 00, longE06 
> 27 36)
> Site classification: rural, alt.1650m (5500ft)
> Limiting magnitude (visual in UMi): 6.1 (50% of the observing time
> with averted vision)
> Transparency (1 to 5 - best to worst): 1.5
> Seeing (1 to 5 - best to worst): 3
> Altitude of object above horizon: 73
> Moon up (phase?): no
> Instrument: Coulter 445mm/17.5" F/4.5
> Magnification:  145x
> Filters used: UHC, OIII, Hbeta
>
> Description: at 145x, small to medium sized PN, quite faint with
> gradually decreasing surface brightness towards the edge (maybe
> slightly elongated E-W?); about 32" in diameter; a mag.14 star is 15"
> from the SW border.
>
> I can provide a scanned drawing of NGC 7354 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...
> --
>
> Carpe noctem, Yann.
>
> Yann Pothier
> 11 impasse Canart, 75012 PARIS, FRANCE
> yann.pothier@tiscali.fr
> http://www.astrosurf.com/cielextreme
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>

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