IPB
X   Site Message
(Message will auto close in 2 seconds)

Welcome Guest ( Log In | Register )

10 Hygeia a dwarf planet
antipode
post Oct 31 2019, 10:22 PM
Post #1


Member
***

Group: Members
Posts: 318
Joined: 1-October 06
Member No.: 1206
Did people notice this?

SPHERE is a powerful instrument, I'm waiting for it to have a go at the more recondite 704 Internamnia and 324 Bamberga.

ESOCast 211

https://www.youtube.com/watch?v=VBi-KeZABl4

P
Go to the top of the page
 
+Quote Post
 
 Start new topic
Replies
marsbug
post Nov 2 2019, 09:03 PM
Post #2


Member
***

Group: Members
Posts: 402
Joined: 5-January 07
From: Manchester England
Member No.: 1563
@mcaplinger
QUOTE
Just because it's spherical now on account of an accident of formation doesn't mean that it meets the definition of a dwarf planet ("has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape")

I think ESO is reaching on this one.


Without attempting to debate the definition of a planet... given some reasonable assumptions about composition, and what is known of Hygia's density and mass, surely this can be quickly settled by calculation, at least to a reasonable approximation?


--------------------
My paintings and drawings

My Blog
Go to the top of the page
 
+Quote Post

Posts in this topic
- antipode   10 Hygeia a dwarf planet   Oct 31 2019, 10:22 PM
- - mcaplinger   Just because it's spherical now on account of ...   Oct 31 2019, 11:26 PM
- - nprev   Reminder to please review rule 1.9 carefully befor...   Oct 31 2019, 11:27 PM
- - marsbug   @mcaplinger QUOTE Just because it's spherical ...   Nov 2 2019, 09:03 PM
- - JRehling   Wikipedia gives presumably accurate (with noted er...   Nov 2 2019, 09:26 PM

« Next Oldest · Telescopic Observations · Next Newest »
 

Reply to this topicStart new topic

 

Display Mode: Switch to: Standard · Switch to: Linear+ · Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

RSS Lo-Fi Version Time is now: 17th December 2024 - 04:18 AM
Powered By IP.Board © 2024  IPS, Inc.
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and 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.