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[vsnet-chat 4120] Re: Strange object
- Date: Thu, 01 Mar 2001 05:42:15 GMT
- To: vsnet-chat@kusastro.kyoto-u.ac.jp
- From: Fraser Farrell <fraser@trilobytes.com.au>
- Subject: [vsnet-chat 4120] Re: Strange object
- In-Reply-To: <200103010311.MAA19293@ceres.kusastro.kyoto-u.ac.jp>
- References: <200103010311.MAA19293@ceres.kusastro.kyoto-u.ac.jp>
- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
> > After that, we noticed a very strange object that was in a similar shape
> > with a planetary nebulae. After a careful search in the Simbad site, the
> > only match we found was an object that had the same coordinates of the
> > USNO catalogue star : USNO-A2.0 0300-10475620 with
> > Bmag - 19.3 and Rmag 17.2 .
> >
Has it been seen on more than one image; at the same coordinates? I'm
thinking of possibilities such as:
- Propellant or something similar being vented from a satellite.
- Sun reflections off a satellite.
- Internal reflection(s) in the telescope/camera.
- Stray lights eg: street lights, aircraft, torches – especially if they
illuminate wisps of cloud.
cheers,
Fraser Farrell
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