New Horizons Funnies and Other Stuff, Miscellaneous Ramblings |
New Horizons Funnies and Other Stuff, Miscellaneous Ramblings |
Jul 11 2015, 11:18 AM
Post
#1
|
|
Senior Member Group: Admin Posts: 3108 Joined: 21-December 05 From: Canberra, Australia Member No.: 615 |
|
|
|
Jul 17 2015, 03:29 PM
Post
#2
|
|||
Member Group: Members Posts: 555 Joined: 27-September 10 Member No.: 5458 |
I don't recall the interval between the two Pluto discovery photographs, but I'm pretty sure it was hours or at most a couple of days, not months. The original uncropped photos posted by rtphokie had the dates January 23, 1930 and January 29, 1930 respectively. So a weeks time. These objects are moving near the same speed or slower than Pluto. The largest is the biggest mystery. I wouldn't expect an asteroid because of the high inclination. Pluto is pretty close to the ecliptic here, hence why Tombaugh was able to find it. But this large object is moving somewhere around 60-70 degrees to that. Its possible its dust but it seems to have registered roughly the same shape in each frame. Could be a comet, could be dust. I agree that it seems strange that it would go unnoticed because it is brighter than Pluto in these frames. Heres a Stellarium shot from January 23, 1930 with as much detail as I can add in. It unfortunately does not include asteroids, KBOs, SDOs, or anything else other than planets and stars unfortunately. Here is Celestia with all solar orbiting body orbits in the standard version visible. -------------------- |
||
|
|||
Jul 17 2015, 04:19 PM
Post
#3
|
||
Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
Could be a comet, could be dust. It's dust. It only takes a few minutes to check the original plates - this is the corresponding region from the Jan 23rd plate: Familiar lesson here: always go back as far as you can to the original data! What's intended for public consumption is often not reliable for serious analysis. |
|
|
||
Lo-Fi Version | Time is now: 20th September 2024 - 09:54 PM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |