Starship Asterisk*

I'm french and I hope you will excuse my poor English. I think that the fading of this comet during this 6 days (from october 12th to 17th) is not due to the rising distance away from us : going from 70 millions km to 77 millions km just reduce its size of about 10% and brightness about 20% (regardi...

Great aurora's activiy in the Lapland sky Hi ! I'm french and I hope that you will excuse my poor English. I went North during the last maximum of solar cycle to see auroras (northern lights), at Tromso (Norway) in October 2013 and Iceland in February 2015. For the new maximum, I planned a week in ...

Hello ! I'm french and I hope that you will excuse my poor English. This picture reminds me the marks carved in an animal bone probably 32.000 years ago : Blanchard.jpg It was found at Abri Blanchard in France (Dordogne) and is now at the Musée d'Archeologie National (National Museum of Archeology),...

Hello ! I’m french and I hope that you will excuse my poor English. RAAGSO22-33.jpg This is a 5h1/2 circumpolar star trails picture compiled from a 600+ sequence of 30s exposure with my digital camera (EOS 6D Mark II) mounted on a tripod and pointing the celestial North Pole. It was made during an o...

Hi !
I think that it was the Morning of April 5, rather than April 4.

Hi! I'm french and I hope that you will excuse my poor English. Vertical ?!? Vertical is a line oriented by the gravitational field of Earth. Rising from the center of our planet, then perpendicular to a horizontal ground. There is nothing like that when you look at the Terminator on earth from spac...

http://www.mfavret.fr/AstroPhoto/202004M45V/m45vcompil3a.jpg Full size Venus passing through Pleïades within 3 days. Canons EOS 6D Mark II, Megrez 80/480, 30x8s at 6400 ISO and 10x1s at 200 ISO (Venus), 6 pictures assembled Animated GIF : http://www.mfavret.fr/AstroPhoto/202004M45V/m45vanima.gif Fu...

Position in the picture :

Hi !
I'm french and I hope you will excuse my poor English.
It's better in full size :

Thanks for all those days in the year with such a high perspective ! Just like mfavret I want that you correct the mistake about the speed of the camera : 100'000 light-years (diameter of M51) x 10 (because the camera is coming from at least 10 times this diameter) = 1 Mlight-years in 1 minute repr...

I'm french and I hope you will excuse my poor English. This video is quite poor too. First, the M51 lost its famous companion NGC 5195. Second, the flyby takes about one minute and the galaxy is thousand light-years large, so our virtual speed is millions time the light speed ! And, during such a lo...

I am french and I hope that you will excuse my poor English. Last night I shot the 21P comet near the M37 open cluster : http://www.mfavret.fr/AstroPhoto/201809/21Pwa.jpg http://www.mfavret.fr/AstroPhoto/201809/21Pw3.jpg But I also shot it during the 2 previous nights to show its movement along lhe ...

I'm french and I hope that you will excuse my poor English. When I saw this movie yesterday, I was surprised by the strange Earth/Moon motion but I waited to read some comments about it. I did it this morning but I do not agree the spacecraft proper motion explanation. If the spacecraft quick motion...

Race trails during a special night I'm french and I hope that you will excuse my poor English. In France, each year during summer, we have a special night for astronomers : Les Nuits des Etoiles (approx : Stars Nights). Created in 1991 by the AFA (Association Française d'Astronomie / French Astrono...

I'm french and I hope that you will excuse my poor English. When I learned the winter sky, many years ago, my astronomers friends teached me another asterism including ALL the brightest stars of this part of the sky, including the Orion's "shoulders" Bellatrix and Betelgeuse. This is the &...

Natural anaglyph in the sky http://www.mfavret.fr/AstroPhoto/201608Nuages/Nuages02.jpg I'm french and I hope that you will excuse my poor English. Few minutes before this picture, from the car park of my favourite minimarket, I saw a beautiful irised cloud with a bird shape but I had no camera with...

Mars retrograde loop http://www.mfavret.fr/AstroPhoto/201608Mars/Mars50mmL.jpg I'm french and I hope that you will excuse my poor English. This picture is just a "teaser" made with wide field shots (50mm) from february to august. The final picture is still under construction with smaller ...

Ok Jeff. But I use to compute the exposure time on a tripod without stars trails with an old equation of 24x36 film camera : Tmax = 500s / F (with F being the focal length in mm). My experience is that it is quite Ok with full-frame digital camera (I have a 6D too). With 35mm, the result is about 14...

Thank you for the technical data. On a french astro forum we discussed also if it is realy a single exposure (and if you used an EOS 6D or a Sony Alpha 7s with a greatest gain). Your answer is clear about that. I have a Ioptron Skytracker too. For such a picture with both sky objets and landscape, w...

Venus/Jupiter conjonction Copyright: Michel Favret Previously posted pictures in a bigger size http://www.mfavret.fr/AstroFlep/201506JupiVenus/3006VJ1A.jpg http://www.mfavret.fr/AstroFlep/201506JupiVenus/3006VJ8A.jpg And a closest view http://www.mfavret.fr/AstroFlep/201506JupiVenus/3006VJ6AL.jpg S...