|
| If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|||||||
| Register | FAQ | Members List | Calendar | Mark Forums Read |
![]() |
|
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
|
||||
|
I am curious to see how many stars I can see with my binoculars. I saw online you can see on perfect conditions ~5,000 stars, which includes all stars mag 6+
My binoculars should be able to pickup mag 10 stars. Approx how many stars are mag 10 or brighter in the night sky. Is there a chart somewhere that just shows a list of magnitudes and an approximate number of stars that fall into that magnitude?
__________________
"The most incomprehensible thing about the universe is that it is comprehensible." - Albert Einstein If you ever need wypall x80 or wypall l40, I'm your man. Check out my janitorial supplies website for more products. |
|
||||
|
Here ya go, but I'm not vouching for its reliability, just yet.
![]() |
|
||||
|
Many factors will affect the number of stars you can see. For example, there may be some 9000 stars stars brighter than 7.0 but will never see them unless you travel to both hemispheres. Your local conditions have a huge impact as well. I think all-in-all the chart posted by hhEb09'1 is a good estimate.
|
|
|||
|
You can do an experiment yourself. First determine the field of view of your binoculars. You can do this by looking at the full moon and estimating how many moons it would take to span your field of view. Let's say for example that you can fit 5 full moons across your field of view. This means that your field of view is 5^2 times the the area of the full moon. And the area of a full moon is pi*.25^2, which equals about 0.2 square degrees. So your field of view in this example would be about 5 square degrees. The full sky is about 41000 square degrees. Divided by 5 square degrees gives you 8200 square degrees. So the full sky is 8200 binocular field of views.
Now aim the binoculars at a random spot in the sky, and count how many stars you can see. Do this 10-20 times and take an average. Multiply this average by 8200. This gives the total stars you can see with binoculars. Compare this to the chart provided by hhEb09'1.
__________________
www.gravitysimulator.com |
|
|||
|
Quote:
|
![]() |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Argo | Robert Tulip | Off-Topic Babbling | 55 | 26-June-2009 06:51 AM |
| July 2007 AstroCalendar | Dave Mitsky | Astronomical Observing, Equipment and Accessories | 0 | 02-July-2007 11:03 PM |
| December 2006 AstroCalendar | Dave Mitsky | Astronomical Observing, Equipment and Accessories | 0 | 02-December-2006 10:28 AM |
| November 2006 AstroCalendar | Dave Mitsky | Astronomical Observing, Equipment and Accessories | 0 | 01-November-2006 10:12 AM |
| June 2006 AstroCalendar | Dave Mitsky | Astronomical Observing, Equipment and Accessories | 0 | 01-June-2006 04:25 PM |