What's above Venus on the Soho Scan today !

Compare the two scans below, taken today, the first at 17:56 and the second
about an hour later at 19:06

http://sohowww.nascom.nasa.gov/data/...l/20030827_175
6_c3.gif
http://sohowww.nascom.nasa.gov/data/...l/20030827_190
6_c3.gif

note: the long url names above may break into parts so I've just recopied
the filenames below:
20030827_1756_c3.gif
20030827_1906_c3.gif

The Sun is in the middle blocked by a template.
Venus is the bright "star" on the left, with a line through it
Jupiter is the other bright "star" on the right, with a line through it.
Regulus is directly below Jupiter.

But what on earth is the unusual star above Venus (halfway up from Venus to
the edge of the image) that was not in the 17:56 image (ie. link-1 above)
but very clear in the 19:06 image (ie. link-2 above)? It has a few comet
like spikes, and a scattering of bright objects around it !

Lester

Lester John wrote:

Compare the two scans below, taken today, the first at 17:56 and the second
about an hour later at 19:06

http://sohowww.nascom.nasa.gov/data/...l/20030827_175
6_c3.gif
http://sohowww.nascom.nasa.gov/data/...l/20030827_190
6_c3.gif

note: the long url names above may break into parts so I've just recopied
the filenames below:
20030827_1756_c3.gif
20030827_1906_c3.gif

The Sun is in the middle blocked by a template.
Venus is the bright "star" on the left, with a line through it
Jupiter is the other bright "star" on the right, with a line through it.
Regulus is directly below Jupiter.

But what on earth is the unusual star above Venus (halfway up from Venus to
the edge of the image) that was not in the 17:56 image (ie. link-1 above)
but very clear in the 19:06 image (ie. link-2 above)? It has a few comet
like spikes, and a scattering of bright objects around it !

Tough to tell without being able to zoom in or change the contrast,
but I bet it's a whopping cosmic ray hit. That "scattering of bright
objects" looks like a region of elevated background noise.

Let's see if it shows up in the next picture ... I bet it won't.

-- Bill Owen

Lester John wrote:

Compare the two scans below, taken today, the first at 17:56 and the
second
about an hour later at 19:06


http://sohowww.nascom.nasa.gov/data/...l/20030827_175
6_c3.gif

http://sohowww.nascom.nasa.gov/data/...l/20030827_190
6_c3.gif

note: the long url names above may break into parts so I've just
recopied
the filenames below:
20030827_1756_c3.gif
20030827_1906_c3.gif

The Sun is in the middle blocked by a template.
Venus is the bright "star" on the left, with a line through it
Jupiter is the other bright "star" on the right, with a line through it.
Regulus is directly below Jupiter.

But what on earth is the unusual star above Venus (halfway up from Venus
to
the edge of the image) that was not in the 17:56 image (ie. link-1
above)
but very clear in the 19:06 image (ie. link-2 above)? It has a few
comet
like spikes, and a scattering of bright objects around it !

Tough to tell without being able to zoom in or change the contrast,
but I bet it's a whopping cosmic ray hit. That "scattering of bright
objects" looks like a region of elevated background noise.

Let's see if it shows up in the next picture ... I bet it won't.

-- Bill Owen

Thanks for the info. I had to ask, because it looks quite curious, and I am
unfamiliar with how space dust, radiation bursts, ect... would influence a
Soho image.

Lester

20030827_1756_c3.gif

There seems to be a streak in the 4 oclock-ish position... about half
way in. Could that be a feint comet, or just an artefact?

20030827_1906_c3.gif

There seems to be a similar streak in the 11 oclock-ish position near
the rim... also a brightish star appearing in the 1 oclock-ish
position near the rim which is not in the previous frame.

Just thought to point those out.