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The domain name 'ui.adsabs.harvard.edu' uses the sponsored educational top-level domain (.edu) and includes subdomain 'ui.adsabs'. Count 7 characters in 'harvard' with two vowels and 5 consonants. Tokenizing the label suggests 1 word: harvard. Median word length is 7 characters. 'harvard' most often appears in Breton. You may catch it in Catalan and Danish as well.

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We present the characteristics of interstellar comet 3I/Asteroid Terrestrial-impact Last Alert System (ATLAS), discovered on 2025 July 1 by the ATLAS. The comet has eccentricity <inline-formula><tex-math>$\simeq$</tex-math></inline-formula>6.1 and velocity at infinity <inline-formula><tex-math>$\simeq$</tex-math></inline-formula>57 km s‑1, indicating an interstellar origin. We obtained B, V, R, I, g, r, i, and z photometry at Kottamia Astronomical Observatory, Palomar Observatory, and Apache Point Observatory on 2025 July 2, 3, and 6. We measured colour indices B–V = 0.98 <inline-formula><tex-math>$\pm$</tex-math></inline-formula> 0.23, V–R = 0.71 <inline-formula><tex-math>$\pm$</tex-math></inline-formula> 0.09, R–I = 0.14 <inline-formula><tex-math>$\pm$</tex-math></inline-formula> 0.10, g–r = 0.84 <inline-formula><tex-math>$\pm$</tex-math></inline-formula> 0.05, r–i = 0.16<inline-formula><tex-math>$\pm$</tex-math></inline-formula>0.03, i–z = –0.02<inline-formula><tex-math>$\pm$</tex-math></inline-formula>0.07, g–i = 1.00<inline-formula><tex-math>$\pm$</tex-math></inline-formula>0.05, and a spectral slope of 16.0 <inline-formula><tex-math>$\pm$</tex-math></inline-formula> 1.9 <inline-formula><tex-math>${{\ \rm per\ cent}}$</tex-math></inline-formula>/100 nm. We estimate the comet's dust cross-section within 10 000 km to be 184.6 <inline-formula><tex-math>$\pm$</tex-math></inline-formula> 4.6 km<inline-formula><tex-math>$^2$</tex-math></inline-formula>, assuming a 0.1 albedo. 3I/ATLAS's coma has full width at half-maximum <inline-formula><tex-math>$\simeq$</tex-math></inline-formula> 2.2 arcsec and A(0<inline-formula><tex-math>$^\circ$</tex-math></inline-formula>)f<inline-formula><tex-math>$\rho$</tex-math></inline-formula> = 280.8 <inline-formula><tex-math>$\pm$</tex-math></inline-formula> 3.2 cm. We estimate 3I/ATLAS is ejecting <inline-formula><tex-math>$\mu$</tex-math></inline-formula>m to mm dust at <inline-formula><tex-math>$\sim$</tex-math></inline-formula>0.01–1 m s‑1, with a mass-loss of <inline-formula><tex-math>$\sim$</tex-math></inline-formula>0.1–1.0 kg s‑1.

description

Interstellar comet 3I/ATLAS: discovery and physical description

https://ui.adsabs.harvard.edu/abs/2025MNRAS.542L.139B/abstract

https://ui.adsabs.harvard.edu/styles/img/transparent_logo.svg

Monthly Notices of the Royal Astronomical Society

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Bolin, Bryce T.;Belyakov, Matthew;Fremling, Christoffer;Graham, Matthew J.;Abdelaziz, Ahmed M.;Elhosseiny, Eslam;Gray, Candace L.;Ingebretsen, Carl;Jewett, Gracyn;Lisse, Carey M.;Karpov, Sergey;Kilic, Mukremin;Mašek, Martin;Molham, Mona;Roderick, Diana;Takey, Ali;Abron, Laura-May;Coughlin, Michael W.;Hsieh, Cheng-Han;Noll, Keith S.;Wong, Ian

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Instrumentation and Methods for Astrophysics

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https://ui.adsabs.harvard.edu/link_gateway/2025MNRAS.542L.139B/PUB_PDF

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HSTS header missing - vulnerable to protocol downgrade attacks

CSP header missing - vulnerable to XSS attacks

child-src https:  chrome-untrusted://new-tab-page/ chrome-untrusted://ntp-microsoft-auth/;connect-src chrome://resources chrome://theme 'self';default-src 'self';font-src chrome://resources 'self';img-src chrome://resources chrome://theme chrome://image chrome://favicon2 chrome://app-icon chrome://extension-icon chrome://fileicon blob: data: 'self';object-src 'none';require-trusted-types-for 'script';script-src chrome://resources chrome://webui-test 'self';style-src chrome://resources chrome://theme 'self' 'unsafe-inline';trusted-types parse-html-subset sanitize-inner-html static-types webui-test-script webui-test-html polymer-html-literal polymer-template-event-attribute-policy lit-html-desktop;frame-ancestors 'none';

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Interstellar comet 3I/ATLAS: discovery and physical description - Astrophysics Data System

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✅ Low Risk - https://ui.adsabs.harvard.edu/abs/2025MNRAS.542L.139B/abstract

Requests	IP Address	Location	AS Autonomous System
28	142.250.185.104	United States	AS15169GOOGLE
3	151.101.194.137	San Francisco, California, United States	AS54113FASTLY
3	151.101.65.229	San Francisco, California, United States	AS54113FASTLY
3	34.225.163.86	Ashburn, Virginia, United States	AS14618AMAZON-AES
3	52.216.59.240	Ashburn, Virginia, United States	AS16509AMAZON-02
3	151.101.193.229	San Francisco, California, United States	AS54113FASTLY
3	151.101.1.229	San Francisco, California, United States	AS54113FASTLY
3	216.239.34.36	United States	AS15169GOOGLE
3	16.15.189.117	Ashburn, Virginia, United States	AS14618AMAZON-AES
3	54.231.204.16	Ashburn, Virginia, United States	AS16509AMAZON-02
160	45	-	-

Security Scan Report: ui.adsabs.harvard.edu

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