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impactcrater

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About impactcrater

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    Star Forming

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    sydney,australia

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  1. it sounds like a long orbital period...is the typical of doubles ?
  2. my wife is not keen as she thinks I will stay away too long. But on the plus cool - down times are quick !
  3. I am thinking about getting the James Webb as my next scope...Any thoughts?
  4. The Shuttle took Hubble into space and it could not have been done without it . And it could not have been repaired without it either . The Shuttle could take heavy payloads and then gently place them where they needed to be and re-catch them if required later. This is remarkable and as Astrologicophiles we owe the Shuttle a great deal indeed. Hubble is the success story of the Shuttle.
  5. https://www.abc.net.au/news/2018-12-24/nasa-astronaut-bill-anders-says-sending-humans-to-mars-stupid/10666708 Is it a bit like Everest...we climb it because "it is there" ? I have looked at Buzz Aldrin's technique to get to Mars and it shows how complex this is and the expense would be 'astronomical'. The Rover programs are bringing us wonderful science and you have to wonder if it is just human hubris that makes us want to land on this planet.There is a held view that when a human lands on Mars they will be stuck there in the sense that they will be colonists rather than visitors. I
  6. it is always frustrating at first , speaking from experience and note it is not a mechanism that is 'spot on' . two star auto is best in my opinion and I learnt that from a tutorial on the net . find a known star earlier in the night so that it is bright and the other stars do not confuse you . when you can just see the first stars is a good time. auto 2 star will then ask you to chose a second star and I base that on looking at stellarium . I like two stars that subtend a 'sensible angle'(a slight roatation of the head) in a reasonably horizontal plane. let the scope sit on these stars
  7. the S Holmes is hilarious...I will use it at Xmas Two Children of the Universe are talking to each other about the game of 'Hide and Seek' and one says to the other 'its not fair , you always get to play dark matter '
  8. Nicolaus Copernicus was pretty amazing . . He is quoted as saying : "For it is the duty of an astronomer to compose the history of the celestial motions through careful and expert study.
  9. ....and not a cafe in sight ......what's the point !
  10. Galileo was an amateur Astronomer...HOW ABOUT YOU ? Come join us as we stare at the Stars and the Cosmos. Be amazed ! No skills required other than a curious mind... YOU may discover something NEVER seen before !
  11. anyone fascinated by this?....every time we take a look we find something we did't know...available on NASA....and related to MR Spitzer...
  12. always a popular topic...I guess we really don't have enough experimental data to really know....take a look at TRAPPIST-1 and note it has 7 Earth sized rocky planets (and perhaps some with moons?) and it makes you wonder whether they are similar in composition and whether the capture theory may apply...
  13. another first in our lifetime ! you do have to hand it to the Americans...
  14. hi karencm...i just couldn't leave your call for help with one reply.....I have a celestron nexstar unit so i am not ideal to help...i wonder if you have the nexstar controller as you said you have two..the other being a starsense one, i assume...can you just try that and see if you can enter the time and place on this simpler unit....the setup for starsense is tricky as a watched the video with lots of 'enters' in sequence for setup. if you cannot enter 'time and location' then i suspect the computer in the scope has failed and you will need the 'shop' 4 years without use may leave
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