Forget That Planet That Orbits Every 16 Hours. That’s so Last Week. Now Astronomers Have Found a Metal Planet That Orbits its Star EVERY 8 HOURS – Universe Today
[ad_1]
Most exoplanets are found using a technique known as the transit method, where the exoplanet passes in front of its star, causing the star to dim slightly. It takes several transits to confirm an exoplanet, so it’s not surprising that most known exoplanets have a fairly short orbital period. Months or days rather than years. There’s also an observational bias in that most known stars are red dwarfs, so it’s usually not surprising that we’ve found yet another exoplanet closely orbiting a red dwarf star. But sometimes what we find is so extreme, it really is surprising.
Recently astronomers discovered a planet orbiting a red dwarf known as GJ 367. This particular star is about 31 light-years from Earth and isn’t particularly special, but its planet orbits the star at a distance of about one-sixtieth that of the orbital radius of Mercury. The planet is so close to GJ 367 that it makes a complete orbit every 8 hours.
One of the disadvantages of the transit method is that it can only tell you the size of an exoplanet relative to its star. Based on the transit data we have, we know the planet is roughly the size of Mars. But that doesn’t tell us anything about the planet’s composition. To determine that, the team had to look at other data.
Based on the temperature of the star and the planet’s orbital distance, the team estimates that its surface temperature could be about 1,500 degrees Celsius. That’s more than twice as hot as Venus and is hot enough to melt rock and iron, so it could be a boiling lava planet. The planet’s actual temperature depends on its atmospheric composition, assuming it has one. One idea about close-orbiting planets like this is that most of the atmosphere boils away, leaving a rocky iron core.
To test this idea, the team used data from the HARPS instrument on the European Southern Observatory’s 3.6m telescope. HARPS can measure the relative motion of GJ 367. Part of that motion is the wobble caused by the gravitational pull of its planet. The bigger the wobble, the more massive the planet. When the team analyzed the data they found the planet has a mass about 5 times that of Mars.
This is surprisingly massive and means the planet has a density just under that of pure iron. Based on planetary models, the world is likely a thin crust covering a large iron core, which adds weight to the idea that it might have once been a gassy super-Earth that has been stripped of its atmosphere and outer crust.
We should be careful not to infer too much about this world just knowing its size and mass. Astronomers have only found a handful of these ultra-short period planets, so we still have much to learn. But it is clear that the universe is filled with some very strange planets indeed.
Reference: Lam, Kristine WF, et al. “GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star.” Science 374.6572 (2021): 1271-1275.
Reference: Armstrong, David J., et al. “A remnant planetary core in the hot-Neptune desert.” Nature 583.7814 (2020): 39-42.
[ad_2]
Original Post
Thanks, I’ve recently been searching for information approximately this subject for a while and yours is the greatest I’ve came upon till now. But, what about the bottom line? Are you sure about the supply?
I dugg some of you post as I cogitated they were very beneficial very helpful
Hi, I do believe this is a great site. I stumbledupon it 😉 I’m going to come back yet again since i have book marked it. Money and freedom is the best way to change, may you be rich and continue to help others.
I really like your writing style, good information, thank you for putting up :D. “Silence is more musical than any song.” by Christina G. Rossetti.
Excellent weblog right here! Additionally your website quite a bit up very fast! What web host are you the usage of? Can I am getting your associate hyperlink in your host? I wish my website loaded up as fast as yours lol
Definitely believe that that you said. Your favourite justification appeared to be on the web the simplest factor to consider of. I say to you, I certainly get irked while people think about worries that they plainly don’t realize about. You managed to hit the nail upon the top and also defined out the entire thing without having side-effects , other folks can take a signal. Will likely be again to get more. Thanks
As a Newbie, I am always browsing online for articles that can help me. Thank you
It’s actually a nice and helpful piece of information. I am glad that you shared this useful information with us. Please keep us informed like this. Thanks for sharing.
Saved as a favorite, I really like your blog!
Hi! I know this is kind of off topic but I was wondering if you knew where I could get a captcha plugin for my comment form? I’m using the same blog platform as yours and I’m having trouble finding one? Thanks a lot!
Valuable info. Lucky me I found your web site by accident, and I’m shocked why this accident did not happened earlier! I bookmarked it.
Hello would you mind letting me know which hosting company you’re working with? I’ve loaded your blog in 3 different browsers and I must say this blog loads a lot quicker then most. Can you suggest a good web hosting provider at a honest price? Thank you, I appreciate it!
An fascinating discussion is price comment. I think that you should write extra on this topic, it might not be a taboo subject however usually persons are not sufficient to speak on such topics. To the next. Cheers
Hi, i think that i saw you visited my blog thus i came to “return the favor”.I’m trying to find things to enhance my site!I suppose its ok to use a few of your ideas!!
Fantastic website. Lots of helpful information here. I¦m sending it to a few friends ans also sharing in delicious. And naturally, thank you to your sweat!
I have recently started a web site, the information you provide on this website has helped me greatly. Thanks for all of your time & work.
I have been exploring for a little bit for any high-quality articles or blog posts on this sort of area . Exploring in Yahoo I finally stumbled upon this web site. Reading this information So i¦m satisfied to exhibit that I have an incredibly excellent uncanny feeling I came upon just what I needed. I such a lot no doubt will make sure to don¦t put out of your mind this web site and provides it a look on a continuing basis.
I¦ve recently started a website, the info you provide on this web site has helped me greatly. Thanks for all of your time & work.
I’ve been browsing online more than three hours as of late, but I by no means found any attention-grabbing article like yours. It¦s pretty price sufficient for me. Personally, if all webmasters and bloggers made excellent content as you did, the net will likely be much more useful than ever before.
I simply couldn’t leave your site before suggesting that I actually loved the standard information a person provide to your guests? Is gonna be again steadily in order to check out new posts
F*ckin’ amazing things here. I’m very glad to see your article. Thanks a lot and i am looking forward to contact you. Will you please drop me a e-mail?
Good day! I could have sworn I’ve been to this website before but after browsing through some of the post I realized it’s new to me. Nonetheless, I’m definitely happy I found it and I’ll be bookmarking and checking back frequently!
I am continually browsing online for articles that can benefit me. Thanks!
Some truly interesting info , well written and generally user pleasant.
Im very happy to uncover this website. I want to to thank you for ones time due to this fantastic read!! I definitely appreciated every part of it and I have you book marked to see new information in your web site.
Admiring the time and energy you put into your website and in depth information you provide. It’s good to come across a blog every once in a while that isn’t the same old rehashed information. Excellent read! I’ve bookmarked your site and I’m including your RSS feeds to my Google account.
A person essentially help to make seriously posts I would state. This is the very first time I frequented your web page and thus far? I amazed with the research you made to make this particular publish extraordinary. Great job!
I was very pleased to uncover this great site. I need to to thank you for ones time for this fantastic read!! I definitely appreciated every bit of it and I have you bookmarked to look at new information on your blog.
I think you have mentioned some very interesting points, regards for the post.
I’m not sure where you’re getting your information, but great topic. I needs to spend some time learning more or understanding more. Thanks for great information I was looking for this information for my mission.
Only a smiling visitant here to share the love (:, btw great pattern. “Treat the other man’s faith gently it is all he has to believe with.” by Athenus.
I’ve been absent for a while, but now I remember why I used to love this blog. Thanks , I¦ll try and check back more frequently. How frequently you update your web site?
It’s hard to find knowledgeable people on this topic, but you sound like you know what you’re talking about! Thanks
I like this web site because so much useful stuff on here : D.
I am constantly thought about this, appreciate it for posting.
I have been examinating out many of your posts and i must say pretty good stuff. I will surely bookmark your website.
Those are yours alright! . We at least need to get these people stealing images to start blogging! They probably just did a image search and grabbed them. They look good though!
Greetings! I know this is kind of off topic but I was wondering if you knew where I could find a captcha plugin for my comment form? I’m using the same blog platform as yours and I’m having difficulty finding one? Thanks a lot!
But wanna tell that this is extremely helpful, Thanks for taking your time to write this.
Saved as a favorite, I really like your blog!
I like this post, enjoyed this one thank you for putting up. “We are punished by our sins, not for them.” by Elbert Hubbard.
I really enjoy reading through on this site, it holds superb blog posts. “And all the winds go sighing, For sweet things dying.” by Christina Georgina Rossetti.
Its like you read my mind! You seem to know so much about this, like you wrote the book in it or something. I think that you could do with some pics to drive the message home a little bit, but instead of that, this is magnificent blog. A fantastic read. I’ll definitely be back.
Very interesting topic, regards for posting. “Nothing great was ever achieved without enthusiasm.” by George Ellis.
Great information shared.. really enjoyed reading this post thank you author for sharing this post .. appreciated
I got what you mean , appreciate it for posting.Woh I am happy to find this website through google. “Those who corrupt the public mind are just as evil as those who steal from the public.” by Theodor Wiesengrund Adorno.
I loved as much as you’ll receive carried out right here. The sketch is tasteful, your authored subject matter stylish. nonetheless, you command get bought an edginess over that you wish be delivering the following. unwell unquestionably come more formerly again since exactly the same nearly very often inside case you shield this increase.
💰△ggongta.com△꽁타💰꽁 머니, 꽁머니 홍보, 꽁머니 텔레방, 꽁 게시판, 꽁머니 공유, 꽁 머니 5천, 꽁 머니 1만, 꽁 머니 2만, 꽁 머니 3만, 환전 가능 꽁머니, 꽁머니카지노, 꽁머니 토토 사이트, 꽁포, 꽁포인트
great points altogether, you just gained a new reader. What would you suggest in regards to your publish that you made some days ago? Any positive?
Very interesting info !Perfect just what I was looking for! “It is our choices…that show what we truly are, far more than our abilities.” by J. K. Rowling.
you are truly a just right webmaster The site loading speed is incredible It kind of feels that youre doing any distinctive trick In addition The contents are masterwork you have done a great activity in this matter
✔️꽁타✔️ggongta.com,꽁머니 커뮤니티,꽁머니이벤트 [배구] 3월12일 19:00 V리그 남자 현대캐피탈 vs 우리카드 +0
Nice post. I used to be checking continuously this weblog and I am inspired! Extremely useful info specially the last part 🙂 I maintain such information a lot. I used to be seeking this certain info for a long time. Thank you and best of luck.
Admiring the time and effort you put into your blog and in depth information you present. It’s good to come across a blog every once in a while that isn’t the same old rehashed material. Excellent read! I’ve saved your site and I’m including your RSS feeds to my Google account.
Simply desire to say your article is as surprising The clearness in your post is simply excellent and i could assume you are an expert on this subject Fine with your permission let me to grab your feed to keep up to date with forthcoming post Thanks a million and please carry on the gratifying work
Its excellent as your other articles : D, regards for putting up. “The art of love … is largely the art of persistence.” by Albert Ellis.
Wow! Thank you! I continually wanted to write on my website something like that. Can I take a fragment of your post to my website?
I like this website because so much useful stuff on here : D.
I just couldn’t go away your site prior to suggesting that I actually enjoyed the standard information a person provide for your visitors? Is going to be back continuously in order to investigate cross-check new posts.
Wow, superb weblog structure! How long have you ever been running a blog for? you make blogging glance easy. The total glance of your website is magnificent, as well as the content!
Lottery Defeater Software? Lottery Defeater is a software application created to help people win lotteries
What Is Sugar Defender? Sugar Defender Drops is a powerful friend for people who want to control their blood sugar levels
Great blog! Do you have any tips for aspiring writers? I’m hoping to start my own blog soon but I’m a little lost on everything. Would you propose starting with a free platform like WordPress or go for a paid option? There are so many choices out there that I’m completely confused .. Any tips? Thank you!
Hey very nice website!! Man .. Beautiful .. Amazing .. I will bookmark your website and take the feeds also…I’m happy to find numerous useful information here in the post, we need work out more techniques in this regard, thanks for sharing. . . . . .
Greetings! I know this is kind of off topic but I was wondering which blog platform are you using for this website? I’m getting sick and tired of WordPress because I’ve had problems with hackers and I’m looking at options for another platform. I would be great if you could point me in the direction of a good platform.
I like this web site very much, Its a very nice office to read and get information.
I like this post, enjoyed this one thanks for putting up. “The difference between stupidity and genius is that genius has its limits.” by Albert Einstein.
I think you have observed some very interesting details, thankyou for the post.
My spouse and I stumbled over here different website and thought I might as well check things out. I like what I see so now i’m following you. Look forward to looking into your web page repeatedly.