Tag Archives: celestial events

Where Can I Find Transit Times for Astronomical Objects?

Question: Is there a way or a program available that will tell me what point on earth is 90° below it. For example for the sun and moon they show when the sun is 90° above a certain location. Can … Continue reading

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Why Does a Small Change in Height Cause the Full Moon to be Occulted by a Nearby Mountain?

Question: I cannot find an answer to this conundrum anywhere on the Web, and it’s not at all a function of the famous Moon Illusion.  Late last month (March), the full moon rose over a 7500-foot elevation ridgeline that’s located … Continue reading

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Does the Prime Meridian of Mars Ever Parallel to the Celestial Prime Meridian?

Question: Is there ever day in Mars history where the Mars prime meridian is parallel to the prime meridian on the celestial sphere? If so what is it?  For example on earth on 1950-3-21T04:35-21 spring equinox the earth prime meridian … Continue reading

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Will a Comet Skim the Earth’s Atmosphere in 2016?

Question: I’ve been dealing with a false prophet who says that a comet is coming and is going to skim the earth, as if to skip off of it, like a stone skipping on water.  Is this even possible?  She … Continue reading

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Double Shadow Transits of the Galilean Satellites of Jupiter

Question: Why is there a double shadow transit (i.e. of the Galilean moons) season for Jupiter and why does it occur during the opposition of the Jupiter relative to Earth?  Do DST occur all the time, but during opposition, it … Continue reading

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Is the Southern Cross Visible from Panama?

Question: We will be visiting Panama from April 2-8.  Will we be able to see the southern cross and where and at what time should we look for it.  Thanks!  — Cheryl Answer: You should be able to see the … Continue reading

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Why Do High Tides Happen Both on the Side of the Earth Facing Toward and Away from the Moon?

Question: During new moon, moon is between earth and sun. The spring tide then occurs. The height of high tide is higher. But on right side of image why is water having high tide. As there is no force pulling … Continue reading

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Do We Observe the Sunrise Six Minutes After it Actually Occurs?

Question: We know sunlight takes about 8 min to reach earth. So we see sunrise 8 min later. Also we see sunrise 2 min earlier due to atmospheric refraction. Does it mean that we see sunrise after about 6 min … Continue reading

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How Can One Tell What Telescope Made an Image of a Deep Space Object?

Question: When looking at an image of a deep space object,  how can you tell what type of telescope was used to take the photo?  — Jeni Answer: Unless the caption or other description of the image lists the telescope … Continue reading

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Why are Telescopes Better at Observing Astronomical Objects than the Naked Eye?

Question: Why are telescopes better than the naked eye?  — Amanda Answer: Well, in fact, there are circumstances when the naked eye is a better way to observe astronomical phenomena than a telescope.  For example, if you are interested in … Continue reading

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