Read this: Because of the distance of Neptune from Earth, its angular diameter only ranges from 2.2 to 2.4 arcseconds, the smallest of the Solar System planets. Its small apparent size makes it challenging to study it visually. Most telescopic data was fairly limited until the advent of Hubble Space Telescope (HST) and large ground-based telescopes with adaptive optics (AO). The first scientifically useful observation of Neptune from ground-based telescopes using adaptive optics, was commenced in 1997 from Hawaii. Neptune is currently entering its spring and summer season and has been shown to be heating up, with increased atmospheric activity and brightness as a consequence. Combined with technological advancements, ground-based telescopes with adaptive optics are recording increasingly more detailed images of this Outer Planet. Both the HST and AO telescopes on Earth has made many new discoveries within the Solar System since the mid-1990s, with a large increase in the number of known satellites and moons around the Outer Planets for example. In 2004 and 2005, five new small satellites of Neptune with diameters between 38 and 61 kilometres were discovered.

 What was discovered around Neptune in 2008 and 2009?
What is the answer? (If it cannot be answered, return "unanswerable")
unanswerable
Läs detta: På grund av Neptunus avstånd från jorden, sträcker sig dess vinkeldiameter endast från 2,2 till 2,4 bågsekunder, den minsta av solsystemets planeter. Dess lilla skenbara storlek gör det svårt att studera den visuellt. De flesta teleskopdata var tämligen begränsade fram till tillkomsten av Hubble Space Telescope (HST) och stora markbaserade teleskop med adaptiv optik (AO). Den första vetenskapligt användbara observationen av Neptunus från markbaserade teleskop med adaptiv optik påbörjades 1997 från Hawaii. Neptunus går för närvarande in i sin vår- och sommarsäsong och har visat sig värma upp, med ökad atmosfärisk aktivitet och ljusstyrka som följd. I kombination med tekniska framsteg spelar markbaserade teleskop med adaptiv optik in allt mer detaljerade bilder av denna Yttre planet. Både HST- och AO-teleskopen på jorden har gjort många nya upptäckter inom Solsystemet sedan mitten av 1990-talet, med en stor ökning av antalet kända satelliter och månar runt till exempel Yttre planeterna. Under 2004 och 2005 upptäcktes fem nya små satelliter av Neptunus med diametrar mellan 38 och 61 kilometer. Vad upptäcktes runt Neptunus 2008 och 2009? Vad är svaret? (Om det inte kan besvaras, återgälda "osvarbart")
Read this: Due to Neptune's distance from Earth, its angle diameter extends only from 2.2 to 2.4 arc seconds, the smallest of the solar system's planets. Its small apparent size makes it difficult to study it visually. Most telescope data were fairly limited until the advent of the Hubble Space Telescope (HST) and large ground-based telescopes with adaptive optics (AO). The first scientifically useful observation of Neptune from ground-based telescopes with adaptive optics began in 1997 from Hawaii. Neptune currently enters its spring and summer season and has been shown to warm up, with increased atmospheric activity and brightness as a result. In combination with technological advances, ground-based telescopes with adaptive optics are recording increasingly detailed images of this Outer Planet. Both the HST and AO telescopes on Earth have made many new discoveries within the Solar System since the mid-1990s, with a large increase in the number of known satellites and moons around, for example, the Outer Planets. In 2004 and 2005, five new small satellites were discovered by Neptune with diameters between 38 and 61 kilometres. What was discovered around Neptune in 2008 and 2009? What's the answer? (If it cannot be answered, repay "unresponsible")
Osvarsbart
Unanswerable