Photography

Mousetoescamper

(5,499 posts) Sat Nov 30, 2024, 01:32 PM Nov 30

Disappearing moon (now with enlarged photos)

Last edited Sat Nov 30, 2024, 03:01 PM - Edit history (1)

While out under the stars shooting the Orion Nebula last night, I also took some shots of Saturn and Jupiter. The Saturn shots were a bust, but my first shots of Jupiter included four of the planet's moons: Io, Europa, Ganymede and Callisto. Three hours later, one of the moons had disappeared behind the planet. The moon was probably Io, which of the four has the shortest orbital period around Jupiter: 1.7 Earth days. Europa's is 3.5 days, Ganymede's is 7.1, and Callisto's is 16.6 Earth days. Nothing is static in the night sky.

***I've replaced the originals with enlargements for easier viewing***

11:33 PM, November 29, facing east

2:21 AM, November 30, facing west

8 replies

= new reply since forum marked as read

Highlight:

Disappearing moon (now with enlarged photos) (Original Post) Mousetoescamper Nov 30 OP

Thanks Nigrum Cattus Nov 30 #1

You're welcome Mousetoescamper Nov 30 #4

Wow! Thats amazing! Diamond_Dog Nov 30 #2

Thanks! Mousetoescamper Nov 30 #5

Wow! Thank you so much, my dear Mousetoescamper! These are GREAT. CaliforniaPeggy Nov 30 #3

Thanks and you're welcome! Mousetoescamper Nov 30 #6

The first set of photos were great, but these enlargements are outstanding! (pun intended) CaliforniaPeggy Nov 30 #7

Thanks! The originals could be zoomed, but the larger pix are more convenient. Mousetoescamper Nov 30 #8

Nigrum Cattus

(228 posts)

1. Thanks

Reply to Mousetoescamper (Original post)

Sat Nov 30, 2024, 01:36 PM

Nov 30

Mousetoescamper

(5,499 posts)

4. You're welcome

Reply to Nigrum Cattus (Reply #1)

Sat Nov 30, 2024, 02:28 PM

Nov 30

Diamond_Dog

(35,165 posts)

2. Wow! Thats amazing!

Reply to Mousetoescamper (Original post)

Sat Nov 30, 2024, 02:15 PM

Nov 30

Isn’t it crazy to think we can see Jupiter’s moons from Earth? Very cool!

I was out around 6:30 to pick up a pizza - it was dusk but getting darker by the minute - and I saw a bright spot of light in the west-southwest sky, all by itself. I wonder if it could have been a planet, although you would think I’d see stars,too, and I didn’t see any stars.

Mousetoescamper

(5,499 posts)

5. Thanks!

Reply to Diamond_Dog (Reply #2)

Sat Nov 30, 2024, 02:49 PM

Nov 30

Ummm. Pizza.

You probably saw Venus, the brightest planet and the third brightest object in the sky, after the Sun and Moon. It can sometimes be seen before sunrise and just after sunset. Venus sets around 7:30 tonight; look to the west after sunset and you might see it gain, weather permitting.