Thursday, June 12, 2014

Asteroid Trifecta with animation.

I've got the bug, the bug of observing minor planets.  I think it started with the pass of Eros in 2012 (  When treating my images I found another little drifter, faintly moving through . I was hooked!  I thought I had discovered something. Turned out the classic case of what's new to me was something already discovered in 1886 but whatever. In learning more since then I've struggled with getting the hang of things. After upgrading from a DSLR to a CCD I found myself reinvigorated. With some recent clear skies and a bit more patience and some growing discipline I have observed this group of three asteroids; (1530) Rantaseppa, (4478) Blanco, and (4687) Brunsandrej. All within the same FOV for my scope and camera of 37.5 x 28.3 arcmin.  Then in an effort to get a +Minor Planet Center designation I found them again a few days later, all still 'apparently' together.

Using Astrometrica to measure position and magnitude you will see the number designation followed by the magnitude in parentheses.

NOTE there are MANY other asteroids in this fov as there are most, but my 2min subs in the 14" didn't quite make out the fainter, say mag18-20+ objects.  Not yet!

Night one - 20140221

Full field

(1530) Rantaseppa

(4478) Blanco

(4687) Brunsandrej

Boring! it was fun to see, but on Night 2

Night TWO - 20140224

In this video you will see an animation of the three asteroids moving over the course of 23:27 to 23:45 EDT or just 17 minutes of movement!

Easiest to click the direct YouTube link and make fullscreen HD (

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Loving husband, proud father, computer geek, astro freak, music lover, sports nut and general fun-loving guy

I've always loved facts, provable facts of nature and things concerning science.  

Over time, I found that most facts are mostly reference and it was the creation of and discovery of new things that intrigued me.

"A good friend once told me you are our memory
without them we equal nothing
And all I can see is the place I wanna be
Suddenly my life was so free
Leaves at my feet, blown to the ground
their echoes are reaching my ears
Nights coming fast, suns going down" - A7x