What is that bright blue star in the south sky?
Hi. That is Sirius.
Which planet or star is closest to the moon and visible from Earth?
The closest apparent star to the moon is often Venus, sometimes Jupiter or Mars, but it’s rare that Jupiter or Mars are near enough to be taken for a bright star, while Venus, being closer to the sun, nearly always looks that way.These are really planets, of course, not stars, but they are star-like lights in the sky, just the same.
There is a bright lonely star I see in the sky until almost 7:30-8am. Is that Sirius?
Little pass middle of the night we see it and when other stars fades as morning comes, the star still shine until 7:30am to 8am. is that Sirius or Aldebaran or? is toward west I think. Is the direction where the sun Set.
How high is the north star in the sky?
as high as your latitude... if you are living at 42 degrees north, Polaris, the North Star, is 42 degrees above the northern horizon... if you live in If you live in Orlando, it will be about 28.5 degrees above the horizon...
What is the name of the first star that is seen each night?
It depends. The first star seen each night will normally be the brightest one that's above the horizon. Many times, that "star" will actually be a planet!Venus is by far the brightest object in the sky (other than the sun or moon), and when it's up, it's virtually impossible to miss. Depending on where it is in its orbit, it'll be relatively low in the western sky after sunset, low in the east before sunrise, or (unfortunately sometimes) too close to the sun and lost in its glare. Through spring and summer of 2018, Venus will become more and more visible in the evenings. (Last summer and fall, it was the "morning star" — visible in the pre-dawn hours.)Jupiter is generally the next brightest object in the sky — brighter than any star. In summer 2017, it was the first "star" visible in the western sky each night, and it will be notable in summer 2018 also.Mars normally isn't very bright, but when it comes very close to Earth, it can rival and even exceed Jupiter's brightness. This will happen in summer 2018, when you will notice Mars bright (and red) in the east as the sun is setting in the west.Of course, sometimes the brightest object actually is a star. The bright planets aren't always above the horizon, and they're not always visible during the same months each year. Likely candidates include:Sirius in the winter months. Sirius is the brightest actual star other than our sun. When the constellation Orion is at its highest point, Sirius is below and to its left.Vega in the summer and fall months. In the summer, Vega is often seen (along with Altair and Deneb, making the "Summer Triangle") low in the east at sunset.Arcturus in the spring and summer months. Arcturus is similarly (along with Spica and Regulus) part of a "Spring Triangle" that can be seen low in the east at sunset between March and May.(Keep in mind, I'm in Houston, TX. If you live at a very different latitude — especially if you're in the Southern Hemisphere — some of these details will vary.)
How can I identify that which planet is it (in the night sky), without using a telescope or any other device?
There isn’t a sure shot way to identify planets in the night sky without using a digital device or telescope. Not unless you are an avid astronomer. However, there are a few planets that you can identify quite easily.Venus: Also referred to as the Morning/Evening Star, Venus is only visible during sunrise and sunset, as the brightest object in the sky after the Sun and the Moon. It is easily visible, even on the hazy days.Jupiter: This gas giant is easily visible as the single brightest star in the night sky, after Venus has vanished. It’s not visible throughout the year though, but for as long as it does appear, it is easily recognisable. Just take a quick look at the night sky, look for the brightest star there is, and that would be your Jupiter.Mars: Unlike Venus and Jupiter, the Red Planet isn’t known for its brightness, but for its colour. It’s not visible throughout the year. But when it is, you can look for a small but bright star, with a recognisably red tone to it. That would be Mars.This is all based on my personal observations though and other might disagree. I normally use my smartphone to track the stars and planets.
Why are we seeing the same star groups each night of the year when Earth is revolving around the Sun?
Dear friend,“The Universe is beautiful - and beauty is only in the change, and never in monotony. Nothing is ever constant in the ever dynamic cosmos, and hence, each night sky is a unique mystery to peer into. The stars and in fact, almost all objects of night sky change their positions continuously, but often, they go unnoticed.”Hence, the stars and their groups (Constellations) keep changing throughout the hours, throughout the days, the months and the seasons, but very slowly. Apart from some stars that are close to the Earth's axis ( like Pole Star or Southern Crux), all other stars can be easily seen to change positions the year round.For example, you look West these March nights, and you can spot this magnificent constellation East - Orion the Hunter.But by April end, this Hunter would disappear in West, to come again only by next November. At the same time Scorpius would rise in Southeast. The circle goes on with most constellations. You see Lyra in summer, Auriga in winter, Leo in spring …. (depends on ur location)In 1 hr, a star moves 15° West. In 12 hrs, 180°. On each new night, u spot the star 1° W of its previous night's location, approximately (varies according to angle of star or other factors).Keep watching the stars every night, and see for yourself, how the whole sky appears to move over the weeks. Stargazing would be one of the best, most dynamic, intelligible, satisfying and delighting experience you can ever have. Night sky will then become your calendar!With time, you will know that just by looking at the stars, u can tell the season, date, time and even location, because they MOVE!