Starship Asterisk*

Beyond wrote:Ahhh, a late morning nap is really refreshing.

Late morning, mid-day, early evening. We are talking about someone who is an Olympic level sleeper.

Neufer - how ever do you FIND these edifying morsels of information?!
M

fausto.lubatti wrote:Very nice picture: I like the coloured star trails left by the long exposures with filters.
Excellent job!

THANK YOU for explaining that, Fausto - I was just about to ask what caused those coloured trails!

Margarita

I'd never heard of C2 before. Fun! Perhaps it should be a Wikipedia link in the text, though. http://en.m.wikipedia.org/wiki/Diatomic_carbon#section_1 Diatomic carbon is a diatomic molecule of carbon (C2), which occurs in carbon vapor, for example in electric arcs; in comets, stellar atmospheres an...

This is a cute photo of Sam - and I confess that I am also experimenting to find out just WHY there are sometime's issues with posting photos from my Android tablet.

But this photo is just to make you go 'Ahhh', hopefully. Sam is the most laid-back individual that I know..

You don't have to sign up. Next to the imgur logo is a cloud with an arrow on it. You can click that and paste the link in and it will host it for you and also create multiple images sizes to link. I tried this but it wouldn't work. Problem is not with imgur - there is some kind of incompatibility ...

Beyond wrote:IF you don't keep track of your feet... you'll be seeing stars, but not the ones in the sky

Ah, but that is where it is so useful to be a wheelchair user...

Chris Peterson wrote That creates parallax- objects in the foreground move with respect to objects in the background, which makes it impossible to perfectly align mosaic images using simple image processing methods Ah ha! So both this Apod and the one we had recently of the Moon rising have actuall...

This image is the subject of a story on the Sky and Telescope website, posted today. http://www.skyandtelescope.com/news/Hubble-Gets-Help-to-Capture-M106-189964931.html That was a useful link, Anthony. Not simply for the article but also because there was information about a free app called SKYWEEK...

Try uploading it to http://www.imgur.com, Marg. I think that would be over- kill! The image is just a close- up of the 5th Feb Apod. I did look at the imgur site, but the hassle of signing up put me off - I can never work out the graphics that you have to copy in order to prove that you're not a ro...

In the lower left, the 'front bumper' of the rover has "Curiosity" spelled out, but it appears to be cut and shifted in the middle. Am I correct in assuming this is a 'defect' caused by splicing together the pieces of the mosaic? I wrote to Photojournal at JPL-NASA as I also was curious a...

Also known as NGC 4258, M106 can be found toward the northern constellation Canes Venatici. http://hawastsoc.org/deepsky/cvn/index.html has an interactive, wide area map of Canes Venatici and say this, First depicted in Johann Hevelius' 1690 atlas the Firmamentum Sobieski, these are Boötes' hunting...

I would think that everyone has watched this video a zillion times - but as I am still excited and awed by the achievement of putting Curiosity on Mars, I decided to post it.

Margarita

If you are curious about Curiosity, this is an interesting video.

Margarita

I chose the Fornax Cluster and the Full Moon silhouette. I am very new to astronomy and the Fornax cluster made me gasp at its beauty - and I fell in love with the subject that day.

The Full Moon taught me about angular size, as well being visually stunning.

Margarita

http://photojournal.jpl.nasa.gov/catalog/PIA16563

The link above (from following the " pictured above" link on the Apod text) takes you to the 360° scrollable image that this image was taken from.

Margarita

Oh, to be able to be under such wonderfully clear skies! This is the first time I've seen a photograph of the Milky Way that is so stunning.

Margarita

WHAT is centered at 1218, 246 ??? May I ask what the numbers refer to in the above post? :? You certainly may ask. I had to ask a similar question myself about 6 months ago Margarita. The numbers are pixel coordinates, with 1,1 being on the top left corner of the image. If you view this image in a ...

Visible slightly above left center is the star LL Orionis (LL Ori), originally release by the Hubble Heritage Project in 2002. The delicate bow shock that surrounds LL Ori points towards the stream of gas flowing slowly away from the center of the Orion Nebula, near the Trapezium stars located off ...

BDanielMayfield wrote:WHAT is centered at 1218, 246 ???

May I ask what the numbers refer to in the above post?

And, what are the other two bright, presumably, stars in this lovely image?

Margarita

Thank you, Chris - that clarifies it beautifully for me. It is one of those things that is obvious once explained clearly - but the Wikipedia article that dealt specifically with synodic periods was, err, not one of that wonderful website's best efforts.

Margarita

http://en.m.wikipedia.org/wiki/Jupiter#section_6 Earth overtakes Jupiter every 398.9 days as it orbits the Sun, a duration called the synodic period . As it does so, Jupiter appears to undergo retrograde motion with respect to the background stars. That is, for a period Jupiter seems to move backwa...

I have read what Wikipedia says but just cannot ' get it. :bang: I understand (I think) what is meant by a Synodical Month, as in from New Moon to New Moon. But I just do not understand why, say, the synodic period of Saturn is 378 days although its orbital period is more than 29 years . And, accord...

http://en.m.wikipedia.org/wiki/List_of_ ... al_symbols

I am replying to my own question!

Wikipedia has a full list of the symbols used in maths at the link above.
Margarita

You have a beautiful cat Margarita! Sam.jpg This is our older cat, named Sam, who put up with this new little person arriving in his domain with great generosity. His companion of ten years, Syd, died on the 7th November and the very next day a tiny starving orphaned kitten turned up in our garden....