Learn Hardcore Norwegian: Utsikten fra rommet mitt er vakker om morgenen. - The view from my room is beautiful in the morning.

Because we’re talking about a specific, identifiable view (the one from my room). Norwegian marks definiteness with a suffix, so utsikt (view) becomes utsikten (the view). Using the indefinite here would be odd unless you restructure the sentence (see below on Det er …).

What gender is utsikt, and does that matter?

Utsikt is feminine in Bokmål, but many speakers treat most feminine nouns as common gender (masculine) in practice.

Indefinite: en/ei utsikt (both are accepted in Bokmål)
Definite: utsikten (same regardless of en/ei) The gender matters for articles and some possessives/adjectives in other contexts, but here it mainly explains why the definite is -en.

Why is it fra and not av in fra rommet mitt?

Use fra to express origin/source in space or time: the view comes from the room. Av is typically “of” for composition, ownership, or agents (e.g., et bilde av rommet mitt = a picture of my room; laget av tre = made of wood). So: utsikt fra, but bilde av.

Why rommet mitt and not mitt rom?

Both exist, but they differ in form and nuance:

rommet mitt (definite noun + postposed possessive) is the neutral, most common way to say “my room.”
mitt rom (preposed possessive + indefinite noun) often adds emphasis/contrast or a more “restrictive” feel (my room as opposed to someone else’s), and is common in fixed expressions. After prepositions, both are possible: fra rommet mitt (most common) and fra mitt rom (a bit more emphatic/stylistic).

Why is there a double m in rommet?

It’s the standard definite form of the neuter noun rom: et rom → rommet. Many monosyllabic neuter nouns double the final consonant in the definite to keep the vowel short. Just memorize the paradigm:

et rom (a room)
rommet (the room)
rom (rooms)
rommene (the rooms)

Why is it mitt and not min?

Because rom is neuter. The possessives are:

Masculine/common: min
Feminine: mi (optional in Bokmål; many use min)
Neuter: mitt
Plural: mine Hence: rommet mitt.

Why is the adjective vakker (and not vakkert or vakre)?

In predicative position (after er), adjectives agree with the subject in number and gender:

Singular common gender (masculine/feminine): vakker → Utsikten er vakker.
Singular neuter: vakkert → Huset er vakkert.
Plural: vakre → Utsiktene er vakre.

What exactly does om morgenen mean?

It means “in the morning” in a general or habitual sense (mornings as a time of day). It doesn’t refer to a single, specific morning.

Can I say på morgenen instead of om morgenen?

Yes, but there’s a nuance:

om morgenen = in the mornings (habitual/general) — most typical for routines.
på morgenen can describe a specific day’s morning or the morning part of a particular day (e.g., tidlig på morgenen 3. mai). It can also be used habitually in some varieties, but om is the safest general choice for routines.

Why is it morgenen (definite) and not morgen?

Time-of-day nouns used in a general sense after om (and often på) typically take the definite singular:

om morgenen (in the morning)
om kvelden (in the evening)
om natten (at night)
om dagen (in the daytime)

Is i morgenen correct?

No. i morgen means “tomorrow,” which is different. For “tomorrow morning,” say i morgen tidlig. For the general time of day, use om morgenen.

Can I move om morgenen to the front of the sentence?

Yes. Norwegian main clauses are V2 (the finite verb is in second position). So:

Om morgenen er utsikten fra rommet mitt vakker. You can also put it at the end (as in the original) or at the very start for emphasis.

Could I instead say Det er vakker utsikt fra rommet mitt om morgenen?

Yes. This is a very natural alternative using an existential Det er construction. Note:

With utsikt, both Det er vakker utsikt and Det er en vakker utsikt occur. Treat utsikt as “mass-like” (no article) or as countable (with en). Without the article sounds a bit more neutral: Det er fin/vakker utsikt …

Any quick synonym tips for vakker here?

Common, natural alternatives:

fin (nice), flott (great/impressive), nydelig (lovely), fantastisk (fantastic). Example: Utsikten … er nydelig/flott om morgenen.

Where else can I place the time phrase?

All of these are fine (with normal differences in emphasis):

Utsikten fra rommet mitt er vakker om morgenen.
Om morgenen er utsikten fra rommet mitt vakker. Avoid putting the heavy time phrase between er and vakker: … er om morgenen vakker sounds awkward.

Any pronunciation tips?

Utsikten: the t in sikt is pronounced; stress on the first syllable: UT-sik-ten.
rommet: double consonant = short preceding vowel; ROM-met.
vakker: double kk gives a short a and a long consonant: VAK-ker.
morgenen: often pronounced like MORR-nen or MOR-gen-en depending on dialect; the g may be weak/assimilated.