Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

tgo747

Asteroid 2004 BL86 is coming!

Recommended Posts

Possible clear bits here, not sure if it's worth entering ephemerids into the mount or just aiming in the right place and wait for it to appear :)

Dave

Share this post


Link to post
Share on other sites

Good luck to everyone having a go at it tonight. The clouds don't look favourable at the minute so my personal chances of venturing out look slim.

Share this post


Link to post
Share on other sites

I can't decide small bright bins or telescope and miss it completely as 8 degree fov versus 2 I know which I stand more chance with.

Also going to set camera up for wide field as that is 54 degree fov.

Hopefully... Just need the sky to clear.

Share this post


Link to post
Share on other sites

I've just updated the Asteroid database in CdC and I seem to be getting 2 entries for this asteroid.  :icon_scratch: Any other CdC users getting the same?  

post-5202-0-66908300-1422288446_thumb.jp

Share this post


Link to post
Share on other sites

I struggled to get it into CdC but the track in Stellarium is the same as the right hand track on your chart (nearest to 3 Juno).

Edited by David Smith
  • Like 1

Share this post


Link to post
Share on other sites

Damn. The life feed has stopped. I wonder how bright its moon is?

Share this post


Link to post
Share on other sites

I struggled to get it into CdC but the track in Stellarium is the same as the right hand track on your chart (nearest to 3 Juno).

Yes I think you're right, the other charts posted in this thread match the right hand track.

Share this post


Link to post
Share on other sites

According to the chart I'm using it's just about entering Cancer now, passing the Beehive Cluster around midnight. Does that tally with others expecations ?

I've got my 4" refractor and the 31mm Nagler trained on that area of the sky so that should give me a fighting chance of a sighting.

Share this post


Link to post
Share on other sites

According to the chart I'm using it's just about entering Cancer now, passing the Beehive Cluster around midnight. Does that tally with others expecations ?

No, you are about 5 hours out. See my earlier posts for live links and skycharts. "It will be approx midway between delta Hydra and beta Cancer at c2330 and reach the Beehive Cluster/M44 around 0530 on the 27th."

Share this post


Link to post
Share on other sites

No, you are about 5 hours out. See my earlier posts for live links and skycharts. "It will be approx midway between delta Hydra and beta Cancer at c2330 and reach the Beehive Cluster/M44 around 0530 on the 27th."

Thanks Steve - the Sky & Telescope web site have two charts that don't agree on the timing - I was looking at the wrong one ! :rolleyes2:

Share this post


Link to post
Share on other sites

Thanks Steve - the Sky & Telescope web site have two charts that don't agree on the timing - I was looking at the wrong one ! :rolleyes2:

No problem. I just hope the cloud stays away long enough for it clear two oak trees.

Share this post


Link to post
Share on other sites

Just been playing around in Stellarium and it looks like it will cross DSLR frame in about 10mins on 100mm refractor.

Dave

Share this post


Link to post
Share on other sites

Whoops. Ignore that message. That data came from my SkySafari Pro, which seems to have incorrect data for the asteroid. According to my Carte du Ciel and other maps It doesn't go anywhere near those galaxies! Sorry.

This got me thinking.

I remember our high speed encounter with DA14 in 2013(?) being part of the motivation for Southern Stars re-working the solar system calculations, so I was surprised to see this.

I just started SkySafari and searched for "2004 BL86", which was found in the database. It was displayed incorrectly. 

However when I searched for "357439" it displayed correctly.

I think there must be two entries in the database, given that CdC has been reported a showing two objects also.

The source does not appear to be selectable in SkySafari but I assume it's an MPC file.

Edited by Paul M

Share this post


Link to post
Share on other sites

Sky has gone a bit milky here now. Only major constellation stars plus the Moon and Jupiter are visible to the naked eye and I reckon even 9th magnitude is beyond my 4" refractor at the present time :undecided:

Maybe it will improve later when the asteroid is higher in the sky ....

Share this post


Link to post
Share on other sites

Pretty clear here.

Just went out with the bins, didn't really know what I was supposed to be looking for plus it doesn't help with the moon washing everything out so I gave up.

Edited by hobsey

Share this post


Link to post
Share on other sites

Total white out here currently. Very frustrating.

Share this post


Link to post
Share on other sites

Virtually total cloud cover here now :embarrassed:

If it does clear, the asteroid is going to look like a tiny faint pinpoint of light moving slowly but steadily along across the starry backdrop. I watched a closer, but much smaller one, last year and it was easy to overlook or loose track of even with a scope. It was a bit brighter than this one as well.

Share this post


Link to post
Share on other sites

I can see it....approaching Dec 5...faint even in my 100mm bins.

Moving v slowly...maybe 15 mins to cross my field of view?

I can confirm its going to miss us.[emoji3]

Mark

Sent from my HTC

  • Like 2

Share this post


Link to post
Share on other sites

if anyone else is looking, here's is a useful link to add MPC / Near Earth Objects to Stellarium: http://stargazerslounge.com/topic/113971-adding-comets-asteroids-and-small-bodies-to-stellarium/

it's broadly accurate with a couple of minor tweaks (if you've not already got PlugIns>'Solar System Editor' loaded at startup then do this and restart - then the configure button will work.

here's the position at 22:30 16th Jan (now):

post-40258-0-10949500-1422311276_thumb.p

  • Like 1

Share this post


Link to post
Share on other sites

Managed to image it across DSLR frame really hard to spot, had to take two pic's and blink them in P'Shop to find it.

Must be tricky to spot visually but it is moving quite quickly so that may help.

Dave

Stellarium co-ords are pretty accurate

Edited by Davey-T
  • Like 1

Share this post


Link to post
Share on other sites

I have taken about 30+ frames of where it was... but... it steadly got murkier and I could only do 15 second subs and I don't know if that is going to have been enough to pick up a mag 9 object. The LP in the direction it was is not my best direction to look!

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.