Thursday, 20 December 2018

Fireball over northern California.

The American Meteor Society has received reports of a bright fireball meteor being seen off the coast of northern California at about 5.35 pm Pacific Standard Time on Wednesday 19 December 2018 (about 1.35 am  on Thursday 20 December GMT). The majority of the reports came from California, but sightings were also reported from southern Oregon. A fireball is defined as a meteor (shooting star) brighter than the planet Venus. These are typically caused by pieces of rock burning up in the atmosphere, but can be the result of man-made space-junk burning up on re-entry. The object appeared to move northeast-to-southwest.

Fireball meteor off the coast of northern California on 19 December 2018. R Abiad/American Meteor Society.

Objects of this size probably enter the Earth's atmosphere several times a year, though unless they do so over populated areas they are unlikely to be noticed. They are officially described as fireballs if they produce a light brighter than the planet Venus. The brightness of a meteor is caused by friction with the Earth's atmosphere, which is typically far greater than that caused by simple falling, due to the initial trajectory of the object. Such objects typically eventually explode in an airburst called by the friction, causing them to vanish as an luminous object. However this is not the end of the story as such explosions result in the production of a number of smaller objects, which fall to the ground under the influence of gravity (which does not cause the luminescence associated with friction-induced heating).
 
 Map showing areas where sightings of the meteor were reported, and the route of the object (blue arrow). American Meteor Society.
 
These 'dark objects' do not continue along the path of the original bolide, but neither do they fall directly to the ground, but rather follow a course determined by the atmospheric currents (winds) through which the objects pass. Scientists are able to calculate potential trajectories for hypothetical dark objects derived from meteors using data from weather monitoring services.

On this occasion the meteor is reported to have caused a noctilucent cloud, a meteorological phenomenon caused by dust or ice crystals in the high atmosphere, at altitudes of between 70 and 100 km. Because they are so high in the atmosphere these clouds continue to be lit by the Sun for some time after sunset from the perspective of people on the ground, making them appear to glow in the dark.

Diagram showing how noctilucent clouds can be lit from below after sunset. National Weather Service.

Witness reports can help astronomers to understand these events. If you witness a fireball-type meteor over the US you can report it to the American Meteor Society here 
 
See also...
 
https://sciencythoughts.blogspot.com/2018/12/the-gemenid-meteor-shower.htmlhttps://sciencythoughts.blogspot.com/2018/11/the-leonid-meteor-shower.html
https://sciencythoughts.blogspot.com/2018/11/southern-taurids-to-peak-on-monday-5.htmlhttps://sciencythoughts.blogspot.com/2018/10/the-orionid-meteors.html
https://sciencythoughts.blogspot.com/2018/10/unusual-inickel-iron-meteorite.htmlhttps://sciencythoughts.blogspot.com/2018/10/the-draconid-meteors.html
Follow Sciency Thoughts on Facebook.

5 comments:

  1. Perkenalkan Nama Saya Irfan Johaery Dari Tanggeran Saya Ingin Menceritakan Awal Mula Kesuksesan Saya Melaluai Pesugihan Uang Gaib MBAH GALANGSETA Awalnya Saya Ragu Mengikuti Pesugihan Uang Gaib Karna Saya Terbilang Orangnya Enggang Dengan Hal Gaib ,, Tetapi Dengan Hanya Mencoba 1 Kali Dengan Niat Besar Saya Ingin Punya Rumah Besar Di Wilayah Tangerang ,, Sungguh Sangat Luar Biasa ,, Petunjuk MBAH GALANGSETA"
    Sungguh Sangat Terbukti Nyata ,, Dengan Biaya RP.2,000,000 Saya Terbantu Dengan Dana Gaib RP.500,000,000-, Hanya Dalam Waktu Kurung Lebih 3 Jam Saja Menungguh Proses Ritualnya ,, Saya Bersaksi Bukan Muluk-Muluk Tetapi Kenyataan Yang Sebenarnya Yang Saya Alami Sungguh Terbukti Nyata Dan Jangan Takut Pesugihan Yang Dilakukan MBAH GALANGSETA Aman Dan Terpecaya Tanpa Tumbal Tanpa Resiko Bener-Bener Nyata ,, Terima Kasih MBAH GALANGSETA" Bagi Anda Yang Ingin Merubah Nasib Seperti Saya Melalui Pesugihan Uang Gaib Silahkan Hubungi MBAH GALANGSETA di No.HP/Whatsapp(wa): 0853 3563 3089 Atau Untuk Lebih Jelasnya KLIK DISINI
    ,, Saya Mengucapkan Banyak-Banyak Terima Kasih Atas Bantuan Anda ... Matur Suwun

    ReplyDelete
  2. Do you need Personal Loan?
    Business Cash Loan?
    Unsecured Loan
    Fast and Simple Loan?
    Quick Application Process?
    Approvals within 24-72 Hours?
    No Hidden Fees Loan?
    Funding in less than 1 Week?
    Get unsecured working capital?
    Contact Us At : ahmedconsultancycompany@gmail.com
    Phone number :+1 516-591-0949 (Whatsapp Only)

    LOAN SERVICES AVAILABLE INCLUDE:
    ================================
    *Commercial Loans.
    *Personal Loans.
    *Business Loans.
    *Investments Loans.
    *Development Loans.
    *Acquisition Loans .
    *Construction loans.
    *Credit Card Clearance Loan
    *Debt Consolidation Loan
    *Business Loans And many More:

    LOAN APPLICATION FORM:
    =================
    Full Name:................
    Loan Amount Needed:.
    Purpose of loan:.......
    Loan Duration:..
    Gender:.............
    Marital status:....
    Location:..........
    Home Address:..
    City:............
    Country:......
    Phone:..........
    Mobile / Cell:....
    Occupation:......
    Monthly Income:....
    Contact Us At :ahmedconsultancycompany@gmail.com

    ReplyDelete
  3. Do you need a genuine Loan to settle your bills and startup
    business? contact us now with your details to get a good
    Loan at a low rate of 3% per Annual email us:
    ahmedconsultancycompany@gmail.com
    Phone number :+1 647-503-5785 (Whatsapp Only)
    Do you need Personal Finance?
    Business Cash Finance?
    Unsecured Finance
    Fast and Simple Finance?
    Quick Application Process?
    Finance. Services Rendered include,
    *Debt Consolidation Finance
    *Business Finance Services
    *Personal Finance services Help
    Please write back if interested with our interest rate
    ahmedconsultancycompany@gmail.com
    Phone number :+1 647-503-5785 (Whatsapp Only)

    ReplyDelete
  4. ASS..WR.WB.SAYA PAK RESKY TKI BRUNAY DARUSALAM INGIN BERTERIMA KASIH BANYAK KEPADA EYANG WORO MANGGOLO,YANG SUDAH MEMBANTU ORANG TUA SAYA KARNA SELAMA INI ORANG TUA SAYA SEDANG TERLILIT HUTANG YANG BANYAK,BERKAT BANTUAN EYANG SEKARAN ORANG TUA SAYA SUDAH BISA MELUNASI SEMUA HUTAN2NYA,DAN SAWAH YANG DULUNYA SEMPAT DI GADAIKAN SEKARAN ALHAMDULILLAH SUDAH BISA DI TEBUS KEMBALI,ITU SEMUA ATAS BANTUAN EYANG WORO MANGGOLO MEMBERIKAN ANGKA RITUALNYA KEPADA KAMI DAN TIDAK DI SANGKA SANGKA TERNYATA BERHASIL,BAGI ANDA YANG INGIN DIBANTU SAMA SEPERTI KAMI SILAHKAN HUBUNGI NO HP EYANG WORO MANGGOLO (0823-9177-2208) JANGAN ANDA RAGU ANGKA RITUAL EYANG WORO MANGGOLO SELALU TEPAT DAN TERBUKTI INI BUKAN REKAYASA SAYA SUDAH MEMBUKTIKAN NYA TERIMAH KASIH
    NO HP EYANG WORO MANGGOLO (0823-9177-2208)
    BUTUH ANGKA GHOIB HASIL RTUAL EYANG WORO MANGGOLO
    DIJAMIN TIDAK MENGECEWAKAN ANDA APAPUN ANDA MINTA INSYA ALLAH PASTI DIKABULKAN BERGAUNLAH SECEPATNYA BERSAMA KAMI JANGAN SAMPAI ANDA MENYESAL

    angka;GHOIB: singapura
    angka;GHOIB: hongkong
    angka;GHOIB; malaysia
    angka;GHOIB; toto magnum
    angka”GHOIB; laos…
    angka”GHOIB; macau
    angka”GHOIB; sidney
    angka”GHOIB: vietnam
    angka”GHOIB: korea
    angka”GHOIB: brunei
    angka”GHOIB: china
    angka”GHOIB: thailand

    ReplyDelete
  5. Assalamualaikum Warahmatullahi Wabarakatuh.

    Negara: Indonesia
    Nama: Queen Jamillah
    Alamat: Nusa Lembongan
    Telepon:+62 877-8303-2269
    WhatsApp:+62 877-8303-2269
    e_mail: queenjamillah09@gmail.com
      Sudah dua tahun sekarang saya memberikan kesaksian tentang bagaimana saya meminjam jumlah 700 juta dari Iskandar Lestari Loan Company dan beberapa orang meragukan saya karena tingkat penipu online saya bisa membuktikan kepada Anda semua bahwa Bunda Iskandar bukan pemberi pinjaman yang curang. telah memberi saya satu hal lagi untuk tersenyum karena setelah menyelesaikan angsuran bulanan pinjaman yang saya pinjam sebelum saya memohon kepada ibu bahwa saya ingin pergi untuk ekspansi lebih lanjut dari bisnis saya sehingga saya mengajukan jumlah 2,7 miliar setelah melalui proses hukum transaksi saya disetujui oleh pihak berwenang dan dalam waktu tiga hari proses hukum untuk menyalurkan pinjaman saya ke rekening Bank Rakyat Indonesia (BRI) saya tercapai dengan mudah. ​​Saya tidak memiliki tantangan dengan Bank Indonesia (BI) karena Ibu Iskandar dan tim Manajemen dari ISKANDAR LESTARI LOAN COMPANY telah dianggap sebagai pemberi pinjaman yang sah sehingga tidak ada masalah sama sekali untuk bantuan keuangan, hubungi ISKANDAR LENDERS hari ini melalui llow informasi kontak
    (e_mail: [iskandalestari.kreditpersatuan@gmail.com]

    Waalaikumsalam Warahmatullahi Wabarakatuh.

    ReplyDelete