I was able to capture an ISS solar transit along with some nice sunspots this morning. The clouds parted just moments before the transit time, which resulted in the image being a bit over-exposed. Still, it's nice to scratch another item off my astrophotography bucket list. http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransit.jpg Full disc: http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransitFull.jpg Jared
Jared, That is outstanding! Thanks for sharing them. Rodger Fry -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Jared Smith Sent: Sunday, September 11, 2011 5:40 PM To: Utah Astronomy Subject: [Utah-astronomy] ISS Solar Transit I was able to capture an ISS solar transit along with some nice sunspots this morning. The clouds parted just moments before the transit time, which resulted in the image being a bit over-exposed. Still, it's nice to scratch another item off my astrophotography bucket list. http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransit.jpg Full disc: http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransitFull.jpg Jared _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php
Great shot, Jared. What was the scope and what the camera? Thanks, Joe ________________________________ From: Rodger C. Fry <rcfry@comcast.net> To: 'Utah Astronomy' <utah-astronomy@mailman.xmission.com> Sent: Sunday, September 11, 2011 5:42 PM Subject: Re: [Utah-astronomy] ISS Solar Transit Jared, That is outstanding! Thanks for sharing them. Rodger Fry -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Jared Smith Sent: Sunday, September 11, 2011 5:40 PM To: Utah Astronomy Subject: [Utah-astronomy] ISS Solar Transit I was able to capture an ISS solar transit along with some nice sunspots this morning. The clouds parted just moments before the transit time, which resulted in the image being a bit over-exposed. Still, it's nice to scratch another item off my astrophotography bucket list. http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransit.jpg Full disc: http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransitFull.jpg Jared _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php
well done! On Sun, Sep 11, 2011 at 5:59 PM, Joe Bauman <josephmbauman@yahoo.com> wrote:
Great shot, Jared. What was the scope and what the camera? Thanks, Joe
________________________________ From: Rodger C. Fry <rcfry@comcast.net> To: 'Utah Astronomy' <utah-astronomy@mailman.xmission.com> Sent: Sunday, September 11, 2011 5:42 PM Subject: Re: [Utah-astronomy] ISS Solar Transit
Jared, That is outstanding!
Thanks for sharing them.
Rodger Fry
-----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Jared Smith Sent: Sunday, September 11, 2011 5:40 PM To: Utah Astronomy Subject: [Utah-astronomy] ISS Solar Transit
I was able to capture an ISS solar transit along with some nice sunspots this morning. The clouds parted just moments before the transit time, which resulted in the image being a bit over-exposed. Still, it's nice to scratch another item off my astrophotography bucket list.
http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransit.jpg
Full disc:
http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransitFull.jpg
Jared
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_______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php
Thanks all. The scope is an 8" Celestron Newtonian. The camera is a Canon T2i at prime focus. The CalSky predicted centerline of the transit went almost exactly over my house. I set the camera to burst mode (~3.7 frames per second) and started capturing exposures about 2 seconds before the indicated time for about 5 seconds. The first 3 exposures all captured the station (the transit only lasted .8 seconds), so my timing was off by a couple seconds. I'm glad I pulled the trigger early. This was the sharpest and best-framed exposure. I'm shooting through Baader photographic (ND=3.8) film. There was a thick layer of clouds and the exposure was perfect (though pretty fuzzy) at 1/4000th second (the fastest shutter speed the camera will run), but the clouds thinned out just seconds before the transit and I didn't have time to stop things down a bit (I have various sizes of black construction paper I tape over the center of the solar filter). As such, the shot was overexposed a bit, but I think it turned out OK for my first try. Jared On Sun, Sep 11, 2011 at 5:59 PM, Joe Bauman <josephmbauman@yahoo.com> wrote:
Great shot, Jared. What was the scope and what the camera? Thanks, Joe
You say "OK"? I think it is just outstanding!!! Steve
Date: Sun, 11 Sep 2011 18:23:11 -0600 From: jared@smithplanet.com To: utah-astronomy@mailman.xmission.com Subject: Re: [Utah-astronomy] ISS Solar Transit
Thanks all.
The scope is an 8" Celestron Newtonian. The camera is a Canon T2i at prime focus. The CalSky predicted centerline of the transit went almost exactly over my house. I set the camera to burst mode (~3.7 frames per second) and started capturing exposures about 2 seconds before the indicated time for about 5 seconds. The first 3 exposures all captured the station (the transit only lasted .8 seconds), so my timing was off by a couple seconds. I'm glad I pulled the trigger early.
This was the sharpest and best-framed exposure. I'm shooting through Baader photographic (ND=3.8) film. There was a thick layer of clouds and the exposure was perfect (though pretty fuzzy) at 1/4000th second (the fastest shutter speed the camera will run), but the clouds thinned out just seconds before the transit and I didn't have time to stop things down a bit (I have various sizes of black construction paper I tape over the center of the solar filter). As such, the shot was overexposed a bit, but I think it turned out OK for my first try.
Jared
On Sun, Sep 11, 2011 at 5:59 PM, Joe Bauman <josephmbauman@yahoo.com> wrote:
Great shot, Jared. What was the scope and what the camera? Thanks, Joe
_______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php
Very impressive Jared! ----- Original Message ----- From: "Jared Smith" <jared@smithplanet.com> To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Sent: Sunday, September 11, 2011 5:39:42 PM Subject: [Utah-astronomy] ISS Solar Transit I was able to capture an ISS solar transit along with some nice sunspots this morning. The clouds parted just moments before the transit time, which resulted in the image being a bit over-exposed. Still, it's nice to scratch another item off my astrophotography bucket list. http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransit.jpg Full disc: http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransitFull.jpg Jared _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php
Nice shot Jared, Looks like there's another chance coming up this coming Sunday afternoon. This from CalSky, calculated for SPOC: Crosses the disk of Sun at 14h30m33.31s. Separation=0.069° Position Angle=31.2°, Position angle vertex=11.9°. Transit duration=0.62s Angular diameter=54.9" size=109.0m x 73.0m x 27.5m Satellite at Azimuth=205.7° SSW Altitude= 48.3° Distance=503.7 km In a clock-face concept, the satellite will seem to move toward 8:36 Angular Velocity=49.8'/s Closest point: Longitude=112°16'51"W Latitude=+40°39'15" (WGS84) Distance=1.91 km Azimuth= 41.6° NE Path direction=131.7° SE ground speed=7.440 km/s width=7.7 km max. duration=0.6 s Orbit source: NASA predicted orbit And here's a very long URL to additional data: http://www.calsky.com/?Transitline=&showhome=&obs=79303019710733&tdt=2455823... patrick On 11 Sep 2011, at 17:39, Jared Smith wrote:
I was able to capture an ISS solar transit along with some nice sunspots this morning. The clouds parted just moments before the transit time, which resulted in the image being a bit over-exposed. Still, it's nice to scratch another item off my astrophotography bucket list.
http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransit.jpg
Full disc: http://smithplanet.com/astro/solarsystem/solar/isstransit/ISSTransitFull.jpg
Jared
participants (7)
-
Chrismo -
Jared Smith -
jcarman6@q.com -
Joe Bauman -
Patrick Wiggins -
Rodger C. Fry -
Steve Fisher