08 November 2019
Hubble Space Telescope Transits across the Sun near Solar Sunspot AR2712

By  Michael Marston
www.facebook.com/marston.michael )

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Last week on Friday 1 June and the first official day of Winter here in Australia, I decided to attempt a Hubble Space Telescope Solar Transit.
The Sun has been very quiet lately, but I did notice over the last week or so there was a possibility of capturing Hubble crossing near a small active region (AR2712).

Now Hubble is only about the size of a bus and given it was extremely far away, I was wondering how I might fair this time around capturing the transit at 60 frames per second.
Given the Sun is so bright, I couldn't see anything and I always dare not look directly into the Sun, so I used a clock and timing to capture the transit.
When I arrived home, I was very excited to see the transit path of a very tiny dot (Hubble) which was traveling at high speed across the the Sun's surface and quite close to AR2712!

HST Transit Information was Provided by ‘Calsky’
Single Image was composited from approximately 80 frames to show the transit path.
Hubble in Orbit and Icarus images in the video are courtesy of NASA/ESA

Equipment Used

Canon EOS-1D X Mark II
Canon 800 mm L IS USM
Orion Solar Filter

NASA Hubble Space Telescope 1 June 2018 - 13h19m15.00s
Crosses the disk of the Sun next to Solar Sunspot Region AR2712
Brisbane, Queensland, Australia
Satellite at Azimuth=333.2° NNW Altitude 35.6°
Transit duration 1.32s. Visible Path width 12.8 km
Angular Diameter of HST (20580 1990-037-B) 3.31"
Cylindrical Size 13.3m x 4.3m
Distance 870.7 km Angular Velocity 23.9'/s
Ground Speed=7.742 km/s (27,800 km/h)


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