Astronomers are used to peering into the cosmos to scrutinize distant stars and planets, but it’s not often that the cosmos stares back.

But in this fantastic image captured by Nasa’s Hubble Space Telescope that’s exactly what Jupiter appears to be doing.

The unusual shot was captured as the shadow of Ganymede, Jupiter’s seventh moon and the largest satellite in the Solar System, moved over the Great Red Spot.

http://www.independent.co.uk/news/science/nasa-catches-jupiter-looking-at-hubble-telescope-though-giant-cyclops-eye-9824870.html

nice picture there, car.

black ball middle pocket……..

Bubblecar said:

Astronomers are used to peering into the cosmos to scrutinize distant stars and planets, but it’s not often that the cosmos stares back.

But in this fantastic image captured by Nasa’s Hubble Space Telescope that’s exactly what Jupiter appears to be doing.

The unusual shot was captured as the shadow of Ganymede, Jupiter’s seventh moon and the largest satellite in the Solar System, moved over the Great Red Spot.

http://www.independent.co.uk/news/science/nasa-catches-jupiter-looking-at-hubble-telescope-though-giant-cyclops-eye-9824870.html

I have to ask; why is Ganymede the only ‘moon’shadow visable when jupiter has 67 moons?

seems an unlikely coincidence

cos space is big. orbits are eccentric. moons are small.

The_observer said:

seems an unlikely coincidence

Nevertheless it happened, which makes the photo remarkable.

JudgeMental said:

cos space is big. orbits are eccentric. moons are small.

The_observer said:

Bubblecar said:

Astronomers are used to peering into the cosmos to scrutinize distant stars and planets, but it’s not often that the cosmos stares back.

But in this fantastic image captured by Nasa’s Hubble Space Telescope that’s exactly what Jupiter appears to be doing.

The unusual shot was captured as the shadow of Ganymede, Jupiter’s seventh moon and the largest satellite in the Solar System, moved over the Great Red Spot.

http://www.independent.co.uk/news/science/nasa-catches-jupiter-looking-at-hubble-telescope-though-giant-cyclops-eye-9824870.html

I have to ask; why is Ganymede the only ‘moon’shadow visable when jupiter has 67 moons?

seems an unlikely coincidence

they are spaced out at greater distances and are in different orbits (locations in space)

Date: 30/10/2014 11:56:18 From: Divine Angel
ID: 618853 Subject: re: Hubble Snaps a Staring Jupiter

very good :)

CrazyNeutrino said:

The_observer said:

Bubblecar said:

Astronomers are used to peering into the cosmos to scrutinize distant stars and planets, but it’s not often that the cosmos stares back.

But in this fantastic image captured by Nasa’s Hubble Space Telescope that’s exactly what Jupiter appears to be doing.

The unusual shot was captured as the shadow of Ganymede, Jupiter’s seventh moon and the largest satellite in the Solar System, moved over the Great Red Spot.

http://www.independent.co.uk/news/science/nasa-catches-jupiter-looking-at-hubble-telescope-though-giant-cyclops-eye-9824870.html

I have to ask; why is Ganymede the only ‘moon’shadow visable when jupiter has 67 moons?

seems an unlikely coincidence

they are spaced out at greater distances and are in different orbits (locations in space)

yes, I realise that,, I didn’t expect there to be 67 shadows, but I thought that there would be maybe just one other

The_observer said:

CrazyNeutrino said:

The_observer said:

I have to ask; why is Ganymede the only ‘moon’shadow visable when jupiter has 67 moons?

seems an unlikely coincidence

they are spaced out at greater distances and are in different orbits (locations in space)

yes, I realise that,, I didn’t expect there to be 67 shadows, but I thought that there would be maybe just one other

hmmm

if the sun is shinning and all the moons are in front of Jupiter then yes 67 shadows

do the calculations of that happening

Bubblecar said:

Astronomers are used to peering into the cosmos to scrutinize distant stars and planets, but it’s not often that the cosmos stares back.

But in this fantastic image captured by Nasa’s Hubble Space Telescope that’s exactly what Jupiter appears to be doing.

The unusual shot was captured as the shadow of Ganymede, Jupiter’s seventh moon and the largest satellite in the Solar System, moved over the Great Red Spot.

http://www.independent.co.uk/news/science/nasa-catches-jupiter-looking-at-hubble-telescope-though-giant-cyclops-eye-9824870.html

I also wonder how accurate those colours are.

There must be some artist interpretation in the result?

CrazyNeutrino said:

The_observer said:

CrazyNeutrino said:

they are spaced out at greater distances and are in different orbits (locations in space)

yes, I realise that,, I didn’t expect there to be 67 shadows, but I thought that there would be maybe just one other

hmmm

if the sun is shinning and all the moons are in front of Jupiter then yes 67 shadows

do the calculations of that happening

I said – “ I didn’t expect there to be 67 shadows”

The_observer said:

Bubblecar said:

Astronomers are used to peering into the cosmos to scrutinize distant stars and planets, but it’s not often that the cosmos stares back.

But in this fantastic image captured by Nasa’s Hubble Space Telescope that’s exactly what Jupiter appears to be doing.

The unusual shot was captured as the shadow of Ganymede, Jupiter’s seventh moon and the largest satellite in the Solar System, moved over the Great Red Spot.

http://www.independent.co.uk/news/science/nasa-catches-jupiter-looking-at-hubble-telescope-though-giant-cyclops-eye-9824870.html

I also wonder how accurate those colours are.

There must be some artist interpretation in the result?

Personally I find them annoying when it comes to astronomy, show it like it is

The_observer said:

Bubblecar said:

Astronomers are used to peering into the cosmos to scrutinize distant stars and planets, but it’s not often that the cosmos stares back.

But in this fantastic image captured by Nasa’s Hubble Space Telescope that’s exactly what Jupiter appears to be doing.

The unusual shot was captured as the shadow of Ganymede, Jupiter’s seventh moon and the largest satellite in the Solar System, moved over the Great Red Spot.

http://www.independent.co.uk/news/science/nasa-catches-jupiter-looking-at-hubble-telescope-though-giant-cyclops-eye-9824870.html

I also wonder how accurate those colours are.

There must be some artist interpretation in the result?

Some are real colors and some are false colors

depends

The_observer said:

CrazyNeutrino said:

The_observer said:

yes, I realise that,, I didn’t expect there to be 67 shadows, but I thought that there would be maybe just one other

hmmm

if the sun is shinning and all the moons are in front of Jupiter then yes 67 shadows

do the calculations of that happening

I said – “ I didn’t expect there to be 67 shadows”

ok

Cymek said:

The_observer said:

Bubblecar said:

Astronomers are used to peering into the cosmos to scrutinize distant stars and planets, but it’s not often that the cosmos stares back.

But in this fantastic image captured by Nasa’s Hubble Space Telescope that’s exactly what Jupiter appears to be doing.

The unusual shot was captured as the shadow of Ganymede, Jupiter’s seventh moon and the largest satellite in the Solar System, moved over the Great Red Spot.

http://www.independent.co.uk/news/science/nasa-catches-jupiter-looking-at-hubble-telescope-though-giant-cyclops-eye-9824870.html

I also wonder how accurate those colours are.

There must be some artist interpretation in the result?

Personally I find them annoying when it comes to astronomy, show it like it is

agree

but false colors can show expected data

David asks: The kids and I very much enjoyed viewing the transit of the shadows of Io and Ganymede across Jupiter on 20/8/10 through our 200mm Celestron. However, now we have a few questions, please. 1) How often does this happen? 2) Do you ever get all four Galilean moon shadows visible at once? 3) What would a solar eclipse on earth look like from Mars with a telecope? Would Martian astronomers see a shadow transiting the Earth’s surface? Thanking you

Answer 1: How often do multiple shadow events occur on Jupiter? This is not immediately obvious, but an astronomer has taken the trouble to sort out all the shadow transits during one Jupiter year, which is 12 Earth years. The results were:

271 double shadow transits and 3 triple shadow transits.

The_observer said:

David asks: The kids and I very much enjoyed viewing the transit of the shadows of Io and Ganymede across Jupiter on 20/8/10 through our 200mm Celestron. However, now we have a few questions, please. 1) How often does this happen? 2) Do you ever get all four Galilean moon shadows visible at once? 3) What would a solar eclipse on earth look like from Mars with a telecope? Would Martian astronomers see a shadow transiting the Earth’s surface? Thanking you

Answer 1: How often do multiple shadow events occur on Jupiter? This is not immediately obvious, but an astronomer has taken the trouble to sort out all the shadow transits during one Jupiter year, which is 12 Earth years. The results were:

271 double shadow transits and 3 triple shadow transits.

Source?

CrazyNeutrino said:

The_observer said:

David asks: The kids and I very much enjoyed viewing the transit of the shadows of Io and Ganymede across Jupiter on 20/8/10 through our 200mm Celestron. However, now we have a few questions, please. 1) How often does this happen? 2) Do you ever get all four Galilean moon shadows visible at once? 3) What would a solar eclipse on earth look like from Mars with a telecope? Would Martian astronomers see a shadow transiting the Earth’s surface? Thanking you

Answer 1: How often do multiple shadow events occur on Jupiter? This is not immediately obvious, but an astronomer has taken the trouble to sort out all the shadow transits during one Jupiter year, which is 12 Earth years. The results were:

271 double shadow transits and 3 triple shadow transits.

Source?

http://www.sydneyobservatory.com.au/2010/shadows-on-jupiter-cast-by-the-galilean-moons-how-often-and-how-many-can-there-be/

The_observer said:

CrazyNeutrino said:

The_observer said:

David asks: The kids and I very much enjoyed viewing the transit of the shadows of Io and Ganymede across Jupiter on 20/8/10 through our 200mm Celestron. However, now we have a few questions, please. 1) How often does this happen? 2) Do you ever get all four Galilean moon shadows visible at once? 3) What would a solar eclipse on earth look like from Mars with a telecope? Would Martian astronomers see a shadow transiting the Earth’s surface? Thanking you

Answer 1: How often do multiple shadow events occur on Jupiter? This is not immediately obvious, but an astronomer has taken the trouble to sort out all the shadow transits during one Jupiter year, which is 12 Earth years. The results were:

271 double shadow transits and 3 triple shadow transits.

Source?

http://www.sydneyobservatory.com.au/2010/shadows-on-jupiter-cast-by-the-galilean-moons-how-often-and-how-many-can-there-be/

thanks for that

;)

Personally I find them annoying when it comes to astronomy, show it like it is

they do. take into consideration the type of camera in use. can’t always have a nikon slr on board. they use filters to get different exposures to get as close to real as possible.

You’ll get more shadows when Jupiter is at its equinox, because at the equinox all the moons are lined up in the plane of the sun and Jupiter.

(but certainly even at equinox you can get a case where there are no such shadows on Jupiter. Don’t be too impressed by the high number of 67: most of these moons are little more than rocks, and their distance from Jupiter means they never form an umbra.)

I find it interesting that Hubble’s scientific focus has changed, but not so much as names suggest. Hubble’s original workhorse was the “Wide Field and Planetary Camera” which was replaced the the “Wide Field Camera”, dropping the word “Planetary”. But BY FAR the best new photographs of Jupiter are still shot by Hubble. Despite all the hype from the LBT, VLT, LMT, GTC, Keck, Subaru etc., not one of the large earth-based telescopes is any good at photographing Jupiter in optical wavelengths. That’s mostly because their adaptive optics is optimised for near infrared, but also because the field of view required to photograph Jupiter is too big for most large Earth-based telescopes (and too small for Pan Starrs etc.) After Hubble, the best new photographs of Jupiter are made by dedicated amateurs.

Hubble is also still the top telescope for photographing Uranus, Neptune and Pluto. Hubble can’t photograph Mercury because it’s too close to the Sun.