sun and moon

without doing any pp is there ever a time or place that you can get sunset and moon rise together?

Technically, a sunset and moonrise would occur around the full moon. The moon would rise in the east while the sun sets in the west. You'd need an extremely wide angle lens for that. You could get a sunset and moonset (or sunrise and moonrise) around the time of the new moon. The moon at best would be a very narrow crescent in either case.

When the moon is full, it should rise exactly at sunset. Good luck capturing that in one image though.

John

seems i would have to do a bit of travelling i knew i would not get full moon but i dont think i would even get these shots here.

http://images.google.c​o.uk …Bmoon%26gbv%3D2​%26hl%3Den

http://images.google.c​o.uk …en%26sa%3DN%26s​tart%3D105

ninjaboy wrote in post #9412340
seems i would have to do a bit of travelling i knew i would not get full moon but i dont think i would even get these shots here.

http://images.google.c​o.uk …Bmoon%26gbv%3D2​%26hl%3Den

http://images.google.c​o.uk …en%26sa%3DN%26s​tart%3D105

Both of those shots are computer generated. Not gonna happen in the real world, unfortunately.

The images in the two links that you provided are made up from separate images of the Sun and Moon – they were not recorded at the same time in the same frame. Here is some astronomical data to help explain why these are Photoshop “fakes”.

The Sun has a diameter of 1.39 million km and is approx. 149.6 million km from Earth. The Moon has a diameter of 3476 km and is approx. 411,000 km from Earth.

However, when viewed from the Earth, the angular size of the Sun and (full) Moon appear to be the same. That is, the angle subtended by both the Sun and (full) Moon in the sky is approximately ½ degree, or 30 arc minutes. This is why we can have a Solar Eclipse; the Moon effectively blots out the Solar disc, despite its actual diminutive physical size compared to the Sun. The Sun and the Moon will always appear to be approximately the same angular size when viewed from all locations on the Earth, whatever the season.

In terms of their brightness, celestial objects are defined by their apparent “magnitude” as viewed from the Earth. The brightest stars are around magnitude 1 and with the naked eye we can usually see stars down to around magnitude 6 (under dark skies away from city lights). The magnitude scale is logarithmic so a typical magnitude 1 star is 100 times as bright as a typical magnitude 6 star.

The apparent magnitude of the Sun is -26.73, and the apparent magnitude of the full moon is -12.6 (-ve numbers are brighter). So, in terms of their apparent brightness, the Sun is about 449,000 times brighter than the Full Moon – well, well beyond the 7 or 8 stop brightness range of a typical DSLR! A crescent Moon that is say, 3 days old, has a magnitude of approx -6, so it is much, much dimmer (approx x250) than the Full Moon at magnitude -12.6.

We also know it is a physical impossibility to have a Full Moon appear close to a setting Sun, as they will be 180 degrees apart on the E (Moon rising) and W (Sun setting) horizons respectively.

Cheers

Dennis