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location Santa Ana, CA
age 54
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2d
awarded  Scholar
2d
accepted Planetary gas giants
2d
asked Planetary gas giants
Sep
26
reviewed Close What is the size of the universe.is it infinite?
Sep
26
reviewed Close Milky way: How do we know its appearance?
Sep
26
revised Is it conceivable that the presence of chlorophyll (or similar) could be distinguishable from other chemicals on an exoplanet?
Fixed title
Sep
23
reviewed Close Requesting book references for a non-expert person with math background or just a non-expert person
Sep
22
comment Is the location that published calendars use to calculate the seasons one specific location on the earth?
If that was the case, then there would only be one set of holidays printed on the calendar.
Sep
20
reviewed No Action Needed Requesting book references for a non-expert person with math background or just a non-expert person
Sep
20
reviewed No Action Needed Sky Glow calculations
Sep
20
answered Appropriate battery for overnight viewing to drive telescope and GOTO?
Sep
19
reviewed No Action Needed How can light reach us from 14 billion light years away?
Sep
19
comment Is there enough hydrogen left after a star dies so another star will have enough to light up?
Are you asking if it is possible for a star to form where a supernova went off?
Sep
19
comment Is there enough hydrogen left after a star dies so another star will have enough to light up?
I believe there is still enough hydrogen to fuse into helium, even down to the middle of the core. It is believed that the fusion in a star is significantly less dense that in a nuclear reactor so it would take time for the fusible elements to build up in concentration. Of course, there is less room for hydrogen as you get near the center.
Sep
18
revised Milky Way Formation
added 198 characters in body
Sep
17
reviewed Approve suggested edit on Which kind of properties can we get for cosmic ray particles hitting on an optical ccd?
Sep
17
reviewed Close Expansion of the Universe
Sep
17
reviewed Approve suggested edit on Which kind of properties can we get for cosmic ray particles hitting on an optical ccd?
Sep
16
comment How massive can a star be at birth?
One more thing to add from the text It must be stressed that the existence of VMOs and SMOs is entirely speculative and they are invoked primarily for the purpose of making dark matter. So it seems that 300 times the mass of the sun is the present limit.
Sep
16
reviewed Leave Open How massive can a star be at birth?