Another Star Is Born!

RobBo · 21-05-04, 00:04

Three young, massive stars will eventually emerge from this natal cloud of dust and gas, but their presence is already revealed in this false-color image from the Spitzer Space Telescope. The picture offers a penetrating infrared view of an emission nebula cataloged as Sharpless 140 which lies about 3,000 light-years away toward the constellation Cepheus. The young stars are otherwise obscured in visible light images by the dusty environs. Sculpted by winds and radiation from hot stars in the region, the majestic arcing structures pictured here are tens of light-years across and contain surprisingly complex molecules - polycyclic aromatic hydrocarbons (PAHs) - that glow in the infrared.

crazyguy100 · 21-05-04, 00:28

WOW!!!

You know, I had a physics' class, and they talked about how much time it takes to star light arrive to Earth (is the expression good?. The Sun's light takes 8 minutes to arrive to Earth! (I had no idea

). They didn't tell how much time it takes to a normal star, do you know??

RobBo · 21-05-04, 00:37

The speed of light in vacuum is exactly 299,792,458 m/s (metres per second)

Gavman · 21-05-04, 01:13

polycyclic aromatic hydrocarbons - I knew that

aromatic?
Those molecules smell or somethin

CrazyGuy, each and every star in space is a different distance from us. The light from some stars take billions of light years to reach us, others only take a few hundred.
When I told my college friend in 1998 that the Sun is a star he was amazed, seams quite a few people don't realise it. Yeah, it's roughly 8 mins for the light from our Solar systems star (the sun) to reach earth.

hey RobBo

, being observant here, but is the speed of light different when not in a vacuum based environment? Just wondering.
I've read that light can be bent and distorted by things such as the (so called) black holes in space.
Just intruiged anyhow... Helps the ol' general knowledge cells and possibly the few polycyclic aromatic hydrocarbons that might be floatin about in me head

gr8 pic tho!

RobBo · 21-05-04, 01:37

Hey Gav!

If light is not in a vacuum, it, along with other physical properties is subject to, what you may know as the 'Doppler Effect'.

crazyguy100 · 21-05-04, 01:41

Quote:

Originally posted by RobBo:
The speed of light in vacuum is exactly 299,792,458 m/s (metres per second)

Have to take note of this...

Quote:

This one from Gavman:
each and every star in space is a different distance from us. The light from some stars take billions of light years to reach us, others only take a few hundred.

Have to take note of this too

.

RobBo · 21-05-04, 01:46

Don't say you never learned anything from TRF!

crazyguy100 · 21-05-04, 02:10

LOL!!! thanks for the info, and TRF! Will really help me at physics! (I love physics!, more than biology

)

Yours_in_darkness · 21-05-04, 02:55

Word. *ahem* lots of big 'uns.

I've studied the Three Big Bangs theory AND Quantum Physics (the two extremes...heh) and what you said didn't really make a lot of sense to me. but that's probably because I didn't so much read it as just look at the picture and go "WHOA! LOOK AT THAT!" Soooo...I'm not in a recommendable state of consciousness at the moment.

Go me.

Gavman · 21-05-04, 04:31

Quote:

Originally posted by RobBo:
Hey Gav!

If light is not in a vacuum, it, along with other physical properties is subject to, what you may know as the 'Doppler Effect'.

Ah the doppler! makes sound change on approach and retreat, i think im on the right lines there anyhow

21-05-04, 00:04	#1
RobBo Junior Member Join Date: Sep 2003 Location: A Small Island Posts: 1,996	Three young, massive stars will eventually emerge from this natal cloud of dust and gas, but their presence is already revealed in this false-color image from the Spitzer Space Telescope. The picture offers a penetrating infrared view of an emission nebula cataloged as Sharpless 140 which lies about 3,000 light-years away toward the constellation Cepheus. The young stars are otherwise obscured in visible light images by the dusty environs. Sculpted by winds and radiation from hot stars in the region, the majestic arcing structures pictured here are tens of light-years across and contain surprisingly complex molecules - polycyclic aromatic hydrocarbons (PAHs) - that glow in the infrared.

21-05-04, 00:28	#2
crazyguy100 Explorer Join Date: Feb 2004 Location: anywhere but home Posts: 801	WOW!!! You know, I had a physics' class, and they talked about how much time it takes to star light arrive to Earth (is the expression good?. The Sun's light takes 8 minutes to arrive to Earth! (I had no idea ). They didn't tell how much time it takes to a normal star, do you know??

21-05-04, 00:37	#3
RobBo Junior Member Join Date: Sep 2003 Location: A Small Island Posts: 1,996	The speed of light in vacuum is exactly 299,792,458 m/s (metres per second)

21-05-04, 01:13	#4
Gavman Junior Member Join Date: Jul 2002 Location: The land of Core! Posts: 1,910	polycyclic aromatic hydrocarbons - I knew that aromatic? Those molecules smell or somethin CrazyGuy, each and every star in space is a different distance from us. The light from some stars take billions of light years to reach us, others only take a few hundred. When I told my college friend in 1998 that the Sun is a star he was amazed, seams quite a few people don't realise it. Yeah, it's roughly 8 mins for the light from our Solar systems star (the sun) to reach earth. hey RobBo , being observant here, but is the speed of light different when not in a vacuum based environment? Just wondering. I've read that light can be bent and distorted by things such as the (so called) black holes in space. Just intruiged anyhow... Helps the ol' general knowledge cells and possibly the few polycyclic aromatic hydrocarbons that might be floatin about in me head gr8 pic tho!

21-05-04, 01:37	#5
RobBo Junior Member Join Date: Sep 2003 Location: A Small Island Posts: 1,996	Hey Gav! If light is not in a vacuum, it, along with other physical properties is subject to, what you may know as the 'Doppler Effect'.

21-05-04, 01:46	#7
RobBo Junior Member Join Date: Sep 2003 Location: A Small Island Posts: 1,996	Don't say you never learned anything from TRF!

21-05-04, 02:10	#8
crazyguy100 Explorer Join Date: Feb 2004 Location: anywhere but home Posts: 801	LOL!!! thanks for the info, and TRF! Will really help me at physics! (I love physics!, more than biology )

21-05-04, 02:55	#9
Yours_in_darkness Historian Join Date: Jan 2004 Location: Up North. Posts: 357	Word. ahem lots of big 'uns. I've studied the Three Big Bangs theory AND Quantum Physics (the two extremes...heh) and what you said didn't really make a lot of sense to me. but that's probably because I didn't so much read it as just look at the picture and go "WHOA! LOOK AT THAT!" Soooo...I'm not in a recommendable state of consciousness at the moment. Go me.