Astronomy, Photography and Weather
September 29, 2022, 01:53:30 am
Welcome, Guest. Please login or register.

Login with username, password and session length
News: IAA lecture programme continues alternate Wednesdays from September - an excellent programme of lectures- Queens University Belfast - Bell Lecture Theatre. Also keep an eye out for the Summer Events
 
  Home Help Search Gallery Staff List Login Register  

NEO - 2007 TU24 (January 2008)

Pages: [1]
  Print  
Author Topic: NEO - 2007 TU24 (January 2008)  (Read 203 times)
Roman White
Hero Member
*****
Posts: 1479


Poltava, Ukraine


View Profile WWW
« on: September 03, 2009, 10:27:53 pm »

I was just sweeping through my archives and have found this interesting observation, which occured before the forum creation - on Jan.30, 2008.

Asteroid 2007 TU24 have passed by Earth at circa 08UT of Jan.29, 2008 at minimal distance 0.0037 AU = 550 000 km.

BTW here is that pretty picture from Arecibo  Smiley


It was cloudy here in the evening, but fortunately it has cleared before dawn (although the temperature dropped to -9°C). I was able to catch the NEA between circa 04:30 - 05:15 EET in Ursa Major (altitude 60°) with my 76mm Newton @35x.

I have estimated its magnitude as 10.6m (ML=11.5m). Movement in front of the faint background stars was visible in 5-10 seconds (angular velocity ~1.6°/h). Geocentric distance at the moment of observation was ca. 0.0054 AU = 810 000 km.

Sketch


It was an unforgettable observation, and probably the smallest asteroid I have ever seen.  Roll Eyes

P.S. There will be only one visible return (I mean close return) in the future...
     K07T24U
Date       UT      R.A. (J2000) Decl.    Delta     r     El.    Ph.   V      Sky Motion       Uncertainty info
            h m s                                                            "/min    P.A.    3-sig/" P.A.
2046 01 20 000000 13 49 48.1 -70 09 37   0.014   0.980   72.4 106.8  15.0   47.53    344.2       N/A   N/A
2046 01 21 000000 13 17 13.7 -51 44 16   0.015   0.982   82.2  96.9  14.6   44.85    351.4       N/A   N/A
2046 01 22 000000 13 05 33.1 -35 42 11   0.017   0.985   91.7  87.3  14.4   35.48    353.5       N/A   N/A
2046 01 23 000000 12 59 34.7 -23 34 05   0.020   0.987   99.2  79.7  14.5   25.85    354.3       N/A   N/A
2046 01 24 000000 12 55 56.1 -14 48 28   0.023   0.990  104.7  74.0  14.7   18.59    354.5       N/A   N/A
2046 01 25 000000 12 53 27.3 -08 27 30   0.027   0.993  108.9  69.6  14.9   13.62    354.5       N/A   N/A
2046 01 26 000000 12 51 37.6 -03 44 50   0.031   0.997  112.2  66.2  15.1   10.26    354.4       N/A   N/A

« Last Edit: September 03, 2009, 10:30:59 pm by Roman White » Report Spam   Logged

SkyWatcher 130/900mm EQ3, Bresser 76/700mm, 20x90 bino. and other, Olympus SP-550UZ
Eclipse & comet chaser, occultation & meteor observer
Poltava Astronomy Portal

Share on Facebook Share on Twitter

martinastro
Martin Mc Kenna
Global Moderator
Hero Member
*****
Posts: 5182


Maghera, N. Ireland


View Profile WWW
« Reply #1 on: September 06, 2009, 02:03:02 pm »

Nicely done Roman!!, and good sketch of its motion. It's a very special thing to visually observe an NEO  Smiley
Report Spam   Logged

Roman White
Hero Member
*****
Posts: 1479


Poltava, Ukraine


View Profile WWW
« Reply #2 on: September 07, 2009, 04:26:56 pm »

Thanks Martin,
It's a very special thing to visually observe an NEO  Smiley
Oh yes!  Wink
Pity it wasn't closer than the Moon, but second place is a good one too
Report Spam   Logged

SkyWatcher 130/900mm EQ3, Bresser 76/700mm, 20x90 bino. and other, Olympus SP-550UZ
Eclipse & comet chaser, occultation & meteor observer
Poltava Astronomy Portal


Pages: [1]
  Print  
 
Jump to:  

Bookmark this site! | Upgrade This Forum
SMF For Free - Create your own Forum

Powered by SMF | SMF © 2016, Simple Machines
Privacy Policy